[Eugene-commits] 01/01: Rethink stereotypes and tag values API (fixes #4042)

26 Sep 2016

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commit 3e4479fc2357cd7253a6e9d9f97a13fce5dbb69e
Author: Tony CHEMIT <chemit@codelutin.com>
Date:   Mon Sep 26 12:29:09 2016 +0200

    Rethink stereotypes and tag values API (fixes #4042)
---
 eugene-java-templates/pom.xml                      |   5 +
 .../eugene/java/AbstractJavaBeanTransformer.java   |  19 +-
 .../nuiton/eugene/java/EugeneJavaStereoTypes.java  | 410 ++++++++++++
 .../nuiton/eugene/java/EugeneJavaTagValues.java    | 713 +++++++++++++++++++++
 .../eugene/java/JavaEnumerationTransformer.java    |   4 +-
 .../eugene/java/JavaTemplatesStereoTypes.java      |   2 +-
 .../SimpleJavaBeanWithNoInterfaceTransformer.java  |   4 +-
 ...stereotype.provider.StereotypeMetadatasProvider |   1 +
 ...ion.tagvalue.provider.TagValueMetadatasProvider |   1 +
 .../eugene/java/EugeneJavaStereoTypesTest.java     |  80 +++
 .../eugene/java/EugeneJavaTagValuesTest.java       |  71 ++
 .../org/nuiton/eugene/plugin/GenerateMojo.java     |  94 +--
 .../eugene/plugin/modelextension/ElementBean.java  |   4 +-
 .../plugin/modelextension/ModelBeanBuilder.java    |   4 +-
 .../writer/BaseChainedFileWriterToMemoryModel.java |  28 +-
 .../org/nuiton/eugene/EugeneCoreStereotypes.java   | 133 ++++
 .../org/nuiton/eugene/EugeneCoreTagValues.java     | 236 +++++++
 .../java/org/nuiton/eugene/EugeneStereoTypes.java  |   1 +
 .../java/org/nuiton/eugene/EugeneTagValues.java    |   1 +
 .../main/java/org/nuiton/eugene/GeneratorUtil.java |   6 +-
 .../main/java/org/nuiton/eugene/ModelReader.java   |  28 +-
 .../org/nuiton/eugene/java/JavaGeneratorUtil.java  |   8 +-
 .../eugene/java/ObjectModelTransformerToJava.java  |  36 +-
 .../main/java/org/nuiton/eugene/models/Model.java  |   4 +-
 .../InvalidStereotypeSyntaxException.java          |   4 +-
 .../MismatchStereotypeTargetException.java         |   4 +-
 .../stereotype/MissingStereoTypeException.java     |  36 +-
 .../extension/stereotype/StereotypeMetadata.java   |  40 ++
 ...tereotypeMetadatasProviderManagerExtension.java |  42 ++
 .../stereotype/StereotypeNotFoundException.java    |   4 +-
 .../stereotype/StereotypeUtil.java}                | 137 ++--
 .../stereotype/WithStereotypes.java}               |   6 +-
 .../AggregateStereotypeMetadatasProvider.java      | 113 ++++
 .../DefaultStereotypeMetadatasProvider.java        |  62 ++
 .../provider/StereotypeMetadatasProvider.java      |  23 +
 .../tagvalue/InvalidTagValueSyntaxException.java   |   2 +-
 .../tagvalue/MismatchTagValueTargetException.java  |   2 +-
 .../tagvalue/MissingTagValueException.java         |  43 +-
 .../extension/tagvalue/TagValueMetadata.java       |  51 ++
 .../TagValueMetadatasProviderManagerExtension.java |  42 ++
 .../tagvalue/TagValueNotFoundException.java        |   2 +-
 .../models/extension/tagvalue/TagValueUtil.java    | 193 ++++++
 .../tagvalue/WithTagValues.java}                   |   7 +-
 .../matcher/EqualsTagValueNameMatcher.java         |  12 +-
 .../tagvalue/matcher/StartsWithTagNameMatcher.java |  12 +-
 .../matcher/TagValueDefinitionMatcher.java         |  24 +-
 .../AggregateTagValueMetadatasProvider.java        |  91 +++
 .../provider/DefaultTagValueMetadatasProvider.java |  81 +++
 .../provider/TagValueMetadatasProvider.java        |  23 +
 .../eugene/models/object/ObjectModelElement.java   |   4 +-
 .../eugene/models/object/ObjectModelPackage.java   |   6 +-
 .../object/reader/AbstractObjectModelReader.java   |  79 ++-
 .../extension/FlatModelExtensionFileParser.java    |  17 +-
 .../reader/extension/LoadModelExtension.java       |  74 ++-
 .../reader/extension/ModelExtensionFileParser.java |   5 +-
 .../object/xml/ObjectModelAttributeImpl.java       |   4 +-
 .../models/object/xml/ObjectModelElementImpl.java  |  16 +-
 .../eugene/models/object/xml/ObjectModelImpl.java  |  46 ++
 .../models/object/xml/ObjectModelPackageImpl.java  |  10 +
 .../eugene/models/state/xml/StateModelImpl.java    |  10 +
 .../AggregateStereotypeDefinitionProvider.java     |   1 +
 .../InvalidStereotypeSyntaxException.java          |   1 +
 .../MismatchStereotypeTargetException.java         |   1 +
 .../stereotype/MissingStereoTypeException.java     |   1 +
 .../stereotype/MyStereotypeDefinitionProvider.java |   1 +
 .../eugene/models/stereotype/StereotypeAble.java   |   1 +
 .../models/stereotype/StereotypeDefinition.java    |   1 +
 .../stereotype/StereotypeDefinitionProvider.java   |   1 +
 ...ereotypeDefinitionProviderManagerExtension.java |   1 +
 .../stereotype/StereotypeDefinitionProviders.java  |   1 +
 .../stereotype/StereotypeNotFoundException.java    |   1 +
 .../eugene/models/stereotype/Stereotypes.java      |   1 +
 .../eugene/models/stereotype/package-info.java     |   1 +
 .../AggregateTagValueDefinitionProvider.java       |   1 +
 .../tagvalue/InvalidTagValueSyntaxException.java   |   1 +
 .../tagvalue/MismatchTagValueTargetException.java  |   1 +
 .../models/tagvalue/MissingTagValueException.java  |   1 +
 .../eugene/models/tagvalue/TagValueAble.java       |   1 +
 .../eugene/models/tagvalue/TagValueDefinition.java |   1 +
 .../tagvalue/TagValueDefinitionProvider.java       |   1 +
 ...TagValueDefinitionProviderManagerExtension.java |   1 +
 .../tagvalue/TagValueDefinitionProviders.java      |   1 +
 .../models/tagvalue/TagValueNotFoundException.java |   1 +
 .../nuiton/eugene/models/tagvalue/TagValues.java   |   1 +
 .../matcher/EqualsTagValueNameMatcher.java         |   1 +
 .../tagvalue/matcher/StartsWithTagNameMatcher.java |   1 +
 .../matcher/TagValueDefinitionMatcher.java         |   1 +
 .../eugene/models/tagvalue/package-info.java       |   1 +
 ...stereotype.provider.StereotypeMetadatasProvider |   1 +
 ...ion.tagvalue.provider.TagValueMetadatasProvider |   1 +
 .../nuiton/eugene/EugeneCoreStereotypesTest.java   |  52 ++
 .../org/nuiton/eugene/EugeneCoreTagValuesTest.java |  68 ++
 .../models/object/XMI21ToObjectModelTest.java      |   5 +-
 93 files changed, 3027 insertions(+), 348 deletions(-)

diff --git a/eugene-java-templates/pom.xml b/eugene-java-templates/pom.xml
index 1c2950f..555e662 100644
--- a/eugene-java-templates/pom.xml
+++ b/eugene-java-templates/pom.xml
@@ -76,6 +76,11 @@
     </dependency>
 
     <dependency>
+      <groupId>org.nuiton.i18n</groupId>
+      <artifactId>nuiton-i18n</artifactId>
+    </dependency>
+
+    <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
     </dependency>
diff --git a/eugene-java-templates/src/main/java/org/nuiton/eugene/java/AbstractJavaBeanTransformer.java b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/AbstractJavaBeanTransformer.java
index 78dddcf..87eb128 100644
--- a/eugene-java-templates/src/main/java/org/nuiton/eugene/java/AbstractJavaBeanTransformer.java
+++ b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/AbstractJavaBeanTransformer.java
@@ -29,7 +29,6 @@ package org.nuiton.eugene.java;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.nuiton.eugene.EugeneTagValues;
 import org.nuiton.eugene.GeneratorUtil;
 import org.nuiton.eugene.models.object.ObjectModelAttribute;
 import org.nuiton.eugene.models.object.ObjectModelClass;
@@ -61,19 +60,19 @@ public abstract class AbstractJavaBeanTransformer extends ObjectModelTransformer
     /** Logger. */
     private static final Log log = LogFactory.getLog(AbstractJavaBeanTransformer.class);
 
-    private JavaTemplatesTagValues javaTemplatesTagValues;
-    private JavaTemplatesStereoTypes javaTemplatesStereoTypes;
+    private EugeneJavaTagValues javaTemplatesTagValues;
+    private EugeneJavaStereoTypes javaTemplatesStereoTypes;
 
-    public JavaTemplatesTagValues getJavaTemplatesTagValues() {
+    public EugeneJavaTagValues getJavaTemplatesTagValues() {
         if (javaTemplatesTagValues == null) {
-            javaTemplatesTagValues = getTagValueDefinitionProvider(JavaTemplatesTagValues.class);
+            javaTemplatesTagValues = getTagValueMetadatasProvider(EugeneJavaTagValues.class);
         }
         return javaTemplatesTagValues;
     }
 
-    public JavaTemplatesStereoTypes getJavaTemplatesStereoTypes() {
+    public EugeneJavaStereoTypes getJavaTemplatesStereoTypes() {
         if (javaTemplatesStereoTypes == null) {
-            javaTemplatesStereoTypes = getStereotypeDefinitionProvider(JavaTemplatesStereoTypes.class);
+            javaTemplatesStereoTypes = getStereotypeMetadatasProvider(EugeneJavaStereoTypes.class);
         }
         return javaTemplatesStereoTypes;
     }
@@ -788,9 +787,9 @@ public abstract class AbstractJavaBeanTransformer extends ObjectModelTransformer
                                                  ObjectModelClass input,
                                                  ObjectModelClassifier output) {
 
-        String i18nPrefix = getTagValueDefinitionProvider(EugeneTagValues.class).getI18nPrefixTagValue(input,
-                                                                                                       aPackage,
-                                                                                                       model);
+        String i18nPrefix = getEugeneTagValues().getI18nPrefixTagValue(input,
+                                                                       aPackage,
+                                                                       model);
         if (!StringUtils.isEmpty(i18nPrefix)) {
             generateI18nBlock(input, output, i18nPrefix);
         }
diff --git a/eugene-java-templates/src/main/java/org/nuiton/eugene/java/EugeneJavaStereoTypes.java b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/EugeneJavaStereoTypes.java
new file mode 100644
index 0000000..125b674
--- /dev/null
+++ b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/EugeneJavaStereoTypes.java
@@ -0,0 +1,410 @@
+package org.nuiton.eugene.java;
+
+/*
+ * #%L
+ * EUGene :: Java templates
+ * %%
+ * Copyright (C) 2012 CodeLutin
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as 
+ * published by the Free Software Foundation, either version 3 of the 
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Lesser Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Lesser Public 
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/lgpl-3.0.html>.
+ * #L%
+ */
+
+import com.google.common.collect.ImmutableSet;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeMetadata;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeUtil;
+import org.nuiton.eugene.models.extension.stereotype.provider.DefaultStereotypeMetadatasProvider;
+import org.nuiton.eugene.models.object.ObjectModel;
+import org.nuiton.eugene.models.object.ObjectModelClassifier;
+import org.nuiton.eugene.models.object.ObjectModelPackage;
+
+import java.util.Set;
+
+import static org.nuiton.i18n.I18n.n;
+
+/**
+ * Defines all stereotypes managed by Java templates.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ * @plexus.component role="org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider" role-hint="eugene-java-templates"
+ * @since 2.5.6
+ */
+public class EugeneJavaStereoTypes extends DefaultStereotypeMetadatasProvider {
+
+    public enum Store implements StereotypeMetadata {
+
+        /**
+         * Stereotype for JavaBean objects to place on a classifier.
+         *
+         * @see #hasBeanStereotype(ObjectModelClassifier, ObjectModelPackage)
+         * @see #hasBeanStereotype(ObjectModelPackage)
+         * @since 2.5.6
+         */
+        bean(n("eugene.java.stereotype.bean"), ObjectModelClassifier.class, ObjectModelPackage.class),
+
+        /**
+         * Tag value to authorize user to generate some bean with methods, some generators won't generate them : Lots code).
+         *
+         * By default, user should never add methods in bean classes, simply write them in your java code!.
+         *
+         * You can globaly use it on the complete model, on packages, or to a specific classifier.
+         *
+         * @see #isAcceptBeanWithMethods(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        acceptBeanWithMethods(n("eugene.java.stereotype.acceptBeanWithMethods"), ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+
+        /**
+         * Tag value to authorize user to override abstract classes.
+         *
+         * By default, user should never override abstract classes but works on implementation ones.
+         *
+         * You can globaly use it on the complete model, on packages, or to a specific classifier.
+         *
+         * @see #isOverrideAbstractClasses(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        overrideAbstractClasses(n("eugene.java.stereotype.overrideAbstractClasses"), ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * Tag value to generate property change support on generated beans.
+         *
+         * You can globaly use it on the complete model, on packages, or to a specific classifier.
+         *
+         * @see #isSkipGeneratePropertyChangeSupport(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.12
+         */
+        generatePropertyChangeSupport(n("eugene.java.stereotype.generatePropertyChangeSupport"), ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * Tag value to generate lazy instanciation of any collection to avoid NPEs.
+         *
+         * You can globaly use it on the complete model or a package, or to a specific classifier.
+         *
+         * @see #isSkipGenerateNotEmptyCollections(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.12
+         */
+        generateNotEmptyCollections(n("eugene.java.stereotype.generateNotEmptyCollections"), ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To generate an interface of each simple bean.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #isSimpleBeanSkipGenerateInterface(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.6.2
+         */
+        simpleBeanGenerateInterface(n("eugene.java.stereotype.simpleBeanGenerateInterface"), ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To generate a factory of generated simple beans.
+         *
+         * You must use it on the complete model.
+         *
+         * @see #isSimpleBeanSkipGenerateFactory(ObjectModel)
+         * @since 2.6.2
+         */
+        simpleBeanGenerateFactory(n("eugene.java.stereotype.simpleBeanGenerateFactory"), ObjectModel.class),
+
+        /**
+         * To generate a factory of generated simple beans.
+         *
+         * You must use it on the complete model.
+         *
+         * @see #isSimpleBeanSkipGenerateDefaults(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.7.2
+         */
+        simpleBeanGenerateDefaults(n("eugene.java.stereotype.simpleBeanGenerateDefaults"), ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To generate a factory of generated simple beans.
+         *
+         * You must use it on the complete model.
+         *
+         * @see #isSimpleBeanWithNoInterfaceSkipGenerateDefaults(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        simpleBeanWithNoInterfaceGenerateDefaults(n("eugene.java.stereotype.simpleBeanWithNoInterfaceGenerateDefaults"), ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+
+        /**
+         * To generate or not guava predicates on each property of the bean.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #isSimpleBeanWithNoInterfaceSkipGeneratePredicates(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        simpleBeanWithNoInterfaceGeneratePredicates(n("eugene.java.stereotype.simpleBeanWithNoInterfaceGeneratePredicates"), ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To generate or not guava functions on each property of the bean.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #isSimpleBeanWithNoInterfaceSkipGenerateFunctions(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        simpleBeanWithNoInterfaceGenerateFunctions(n("eugene.java.stereotype.simpleBeanWithNoInterfaceGenerateFunctions"), ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To generate or not constructors methods on Default classes.
+         *
+         * You can globaly use it on the complete model, package or on a specific classifier.
+         *
+         * @see #isSimpleBeanWithNoInterfaceSkipGenerateDefaultConstructors(ObjectModelClassifier, ObjectModelPackage, ObjectModel)}
+         * @since 3.0
+         */
+        simpleBeanWithNoInterfaceSkipGenerateConstructors(n("eugene.java.stereotype.simpleBeanWithNoInterfaceSkipGenerateConstructors"), ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class);
+
+
+        private final Set<Class<?>> targets;
+        private final String i18nDocumentationKey;
+
+        Store(String i18nDocumentationKey, Class<?>... targets) {
+            this.targets = ImmutableSet.copyOf(targets);
+            this.i18nDocumentationKey = i18nDocumentationKey;
+        }
+
+        @Override
+        public String getName() {
+            return name();
+        }
+
+        @Override
+        public Set<Class<?>> getTargets() {
+            return targets;
+        }
+
+        @Override
+        public String getI18nDocumentationKey() {
+            return i18nDocumentationKey;
+        }
+
+        @Override
+        public boolean isDeprecated() {
+            return false;
+        }
+    }
+
+    public EugeneJavaStereoTypes() {
+        super((StereotypeMetadata[]) Store.values());
+    }
+
+    /**
+     * Check if the given classifier has the {@link Store#bean} stereotype.
+     *
+     * @param classifier classifier to test
+     * @return {@code true} if stereotype was found, {@code false otherwise}
+     * @see Store#bean
+     */
+    public static boolean hasBeanStereotype(ObjectModelClassifier classifier, ObjectModelPackage aPackage) {
+        return StereotypeUtil.findDirectStereotype(Store.bean, classifier, aPackage);
+    }
+
+    /**
+     * Check if the given aPackage has the {@link Store#bean} stereotype.
+     *
+     * @param aPackage classifier to test
+     * @return {@code true} if stereotype was found, {@code false otherwise}
+     * @see Store#bean
+     */
+    public static boolean hasBeanStereotype(ObjectModelPackage aPackage) {
+        return StereotypeUtil.findDirectStereotype(Store.bean, aPackage);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#acceptBeanWithMethods} tag value on the given model, package or classifier.
+     *
+     * It will first look on the model, then and package and then in the given classifier.
+     *
+     * If no value found, then will use the default value of the tag value.
+     *
+     * @param classifier classifier to seek
+     * @param aPackage   package to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#acceptBeanWithMethods
+     * @since 3.0
+     */
+    public boolean isAcceptBeanWithMethods(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.acceptBeanWithMethods, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#overrideAbstractClasses} tag value on the given model, package or classifier.
+     *
+     * It will first look on the model, then and package and then in the given classifier.
+     *
+     * If no value found, then will use the default value of the tag value.
+     *
+     * @param classifier classifier to seek
+     * @param aPackage   package to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#overrideAbstractClasses
+     * @since 3.0
+     */
+    public boolean isOverrideAbstractClasses(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.overrideAbstractClasses, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#generatePropertyChangeSupport} tag value on the given model, package or classifier.
+     *
+     * It will first look on the model, then and package and then in the given classifier.
+     *
+     * If no value found, then will use the default value of the tag value.
+     *
+     * @param classifier classifier to seek
+     * @param aPackage   package to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#generatePropertyChangeSupport
+     * @since 2.12
+     */
+    public boolean isSkipGeneratePropertyChangeSupport(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.generatePropertyChangeSupport, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#generateNotEmptyCollections} tag value on the given model, package or classifier.
+     *
+     * It will first look on the model, then and package and then in the given classifier.
+     *
+     * If no value found, then will use the default value of the tag value.
+     *
+     * @param classifier classifier to seek
+     * @param aPackage   package to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#generateNotEmptyCollections
+     * @since 2.12
+     */
+    public boolean isSkipGenerateNotEmptyCollections(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.generateNotEmptyCollections, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanGenerateInterface} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanGenerateInterface
+     * @since 2.3
+     */
+    public boolean isSimpleBeanSkipGenerateInterface(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.simpleBeanGenerateInterface, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanGenerateFactory} tag value on the given model or classifier.
+     *
+     * @param model model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanGenerateFactory
+     * @since 2.7.2
+     */
+    public boolean isSimpleBeanSkipGenerateFactory(ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.simpleBeanGenerateFactory, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanGenerateDefaults} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanGenerateDefaults
+     * @since 2.7.2
+     */
+    public boolean isSimpleBeanSkipGenerateDefaults(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.simpleBeanGenerateDefaults, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanWithNoInterfaceGenerateDefaults} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanWithNoInterfaceGenerateDefaults
+     * @since 3.0
+     */
+    public boolean isSimpleBeanWithNoInterfaceSkipGenerateDefaults(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.simpleBeanWithNoInterfaceGenerateDefaults, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanWithNoInterfaceGeneratePredicates} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * <strong>If not filled, then use default {@code s} value.</strong>
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanWithNoInterfaceGeneratePredicates
+     * @since 3.0
+     */
+    public boolean isSimpleBeanWithNoInterfaceSkipGeneratePredicates(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.simpleBeanWithNoInterfaceGeneratePredicates, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanWithNoInterfaceGenerateFunctions} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * <strong>If not filled, then use default {@code s} value.</strong>
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanWithNoInterfaceGenerateFunctions
+     * @since 3.0
+     */
+    public boolean isSimpleBeanWithNoInterfaceSkipGenerateFunctions(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.simpleBeanWithNoInterfaceGenerateFunctions, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanWithNoInterfaceSkipGenerateConstructors} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * <strong>If not filled, then use default {@code s} value.</strong>
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanWithNoInterfaceSkipGenerateConstructors
+     * @since 3.0
+     */
+    public boolean isSimpleBeanWithNoInterfaceSkipGenerateDefaultConstructors(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return StereotypeUtil.findDirectStereotype(Store.simpleBeanWithNoInterfaceSkipGenerateConstructors, classifier, aPackage, model);
+    }
+
+
+}
diff --git a/eugene-java-templates/src/main/java/org/nuiton/eugene/java/EugeneJavaTagValues.java b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/EugeneJavaTagValues.java
new file mode 100644
index 0000000..7ca6609
--- /dev/null
+++ b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/EugeneJavaTagValues.java
@@ -0,0 +1,713 @@
+package org.nuiton.eugene.java;
+
+/*
+ * #%L
+ * EUGene :: Java templates
+ * %%
+ * Copyright (C) 2012 CodeLutin
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as 
+ * published by the Free Software Foundation, either version 3 of the 
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Lesser Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Lesser Public 
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/lgpl-3.0.html>.
+ * #L%
+ */
+
+import com.google.common.collect.ImmutableSet;
+import org.apache.commons.lang3.StringUtils;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadata;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueUtil;
+import org.nuiton.eugene.models.extension.tagvalue.matcher.EqualsTagValueNameMatcher;
+import org.nuiton.eugene.models.extension.tagvalue.provider.DefaultTagValueMetadatasProvider;
+import org.nuiton.eugene.models.object.ObjectModel;
+import org.nuiton.eugene.models.object.ObjectModelClassifier;
+import org.nuiton.eugene.models.object.ObjectModelPackage;
+
+import java.util.Set;
+
+import static org.nuiton.i18n.I18n.n;
+
+/**
+ * Defines all tag values managed by Java templates.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ * @plexus.component role="org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider" role-hint="eugene-java-templates"
+ * @since 2.5.6
+ */
+public class EugeneJavaTagValues extends DefaultTagValueMetadatasProvider {
+
+//    /**
+//     * Tag value to generate property change support on generated beans.
+//     *
+//     * You can globaly use it on the complete model, on packages, or to a specific classifier.
+//     *
+//     * @see #isSkipGeneratePropertyChangeSupport(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+//     * @since 2.12
+//     */
+//    @TagValueDefinition(
+//            target = {ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class},
+//            defaultValue = "true",
+//            documentation = "To generate property change support code.")
+//    generatePropertyChangeSupport(n("eugene.java.tagvalue."), String.class, null,ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+//
+//    /**
+//     * Tag value to generate lazy instanciation of any collection to avoid NPEs.
+//     *
+//     * You can globaly use it on the complete model or a package, or to a specific classifier.
+//     *
+//     * @see #isSkipGenerateNotEmptyCollections(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+//     * @since 2.12
+//     */
+//    @TagValueDefinition(
+//            target = {ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class},
+//            defaultValue = "true",
+//            documentation = "To lazy instanciate collections to avoid NPE codes.")
+//    generateNotEmptyCollections(n("eugene.java.tagvalue."), String.class, null,ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+    public enum Store implements TagValueMetadata {
+
+        /**
+         * Tag value to use a super class for generated bean.
+         *
+         * If the bean needs Property change support (says you use the {@link JavaTemplatesStereoTypes#STEREOTYPE_SKIP_GENERATE_PROPERTY_CHANGE_SUPPORT}),
+         * then your class must provide everything for it.
+         *
+         * More over, if you use some collections in your bean you must also define
+         * two method named {@code getChild(Collection list, int index)} and
+         * {@code getChild(List list, int index)}
+         *
+         * See new code to know minimum stuff to add in your class for this purpose.
+         * <pre>
+         * public abstract class AbstractBean implements Serializable {
+         *
+         *     private static final long serialVersionUID = 1L;
+         *
+         *     protected final PropertyChangeSupport pcs = new PropertyChangeSupport(this);
+         *
+         *     public void addPropertyChangeListener(PropertyChangeListener listener) {
+         *         pcs.addPropertyChangeListener(listener);
+         *     }
+         *
+         *     public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener) {
+         *         pcs.addPropertyChangeListener(propertyName, listener);
+         *     }
+         *
+         *     public void removePropertyChangeListener(PropertyChangeListener listener) {
+         *         pcs.removePropertyChangeListener(listener);
+         *     }
+         *
+         *     public void removePropertyChangeListener(String propertyName, PropertyChangeListener listener) {
+         *         pcs.removePropertyChangeListener(propertyName, listener);
+         *     }
+         *
+         *     protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {
+         *         pcs.firePropertyChange(propertyName, oldValue, newValue);
+         *     }
+         *
+         *     protected void firePropertyChange(String propertyName, Object newValue) {
+         *         firePropertyChange(propertyName, null, newValue);
+         *     }
+         *
+         *     protected <T> T getChild(Collection<T> list, int index) {
+         *         return CollectionUtil.getOrNull(list, index);
+         *     }
+         *
+         *     protected <T> T getChild(List<T> list, int index) {
+         *         return CollectionUtil.getOrNull(list, index);
+         *     }
+         * }
+         * </pre>
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getBeanSuperClassTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.5.6
+         */
+        beanSuperClass(n("eugene.java.tagvalue.beanSuperClass"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+        /**
+         * Tag value to use a super class for generated bean.
+         *
+         * If the bean needs Property change support (says you use the tag-value {@link JavaTemplatesStereoTypes#STEREOTYPE_SKIP_GENERATE_PROPERTY_CHANGE_SUPPORT},
+         * then your class must provide evrything for it.
+         *
+         * More over, if you use some collections in your bean you must also define
+         * two method named {@code getChild(Collection list, int index)} and
+         * {@code getChild(List list, int index)}
+         *
+         * See new code to know minimum stuff to add in your class for this purpose.
+         * <pre>
+         * public abstract class AbstractBean implements Serializable {
+         *
+         *     private static final long serialVersionUID = 1L;
+         *
+         *     protected final PropertyChangeSupport pcs = new PropertyChangeSupport(this);
+         *
+         *     public void addPropertyChangeListener(PropertyChangeListener listener) {
+         *         pcs.addPropertyChangeListener(listener);
+         *     }
+         *
+         *     public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener) {
+         *         pcs.addPropertyChangeListener(propertyName, listener);
+         *     }
+         *
+         *     public void removePropertyChangeListener(PropertyChangeListener listener) {
+         *         pcs.removePropertyChangeListener(listener);
+         *     }
+         *
+         *     public void removePropertyChangeListener(String propertyName, PropertyChangeListener listener) {
+         *         pcs.removePropertyChangeListener(propertyName, listener);
+         *     }
+         *
+         *     protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {
+         *         pcs.firePropertyChange(propertyName, oldValue, newValue);
+         *     }
+         *
+         *     protected void firePropertyChange(String propertyName, Object newValue) {
+         *         firePropertyChange(propertyName, null, newValue);
+         *     }
+         *
+         *     protected <T> T getChild(Collection<T> list, int index) {
+         *         return CollectionUtil.getOrNull(list, index);
+         *     }
+         *
+         *     protected <T> T getChild(List<T> list, int index) {
+         *         return CollectionUtil.getOrNull(list, index);
+         *     }
+         * }
+         * </pre>
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanSuperClassTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.5.6
+         */
+        simpleBeanSuperClass(n("eugene.java.tagvalue.simpleBeanSuperClass"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a prefix on the name of each generated bean class.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanClassNamePrefixTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.6.2
+         */
+        simpleBeanClassNamePrefix(n("eugene.java.tagvalue.simpleBeanClassNamePrefix"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a prefix on the name of each generated bean class.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanClassNameSuffixTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.6.2
+         */
+        simpleBeanClassNameSuffix(n("eugene.java.tagvalue.simpleBeanClassNameSuffix"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * Tag value to use a super interface for generated interfaces on simple bean.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanInterfaceSuperClassTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.6.2
+         */
+        simpleBeanInterfaceSuperClass(n("eugene.java.tagvalue.simpleBeanInterfaceSuperClass"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a prefix on the name of each generated interface of a simple bean.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanInterfaceNamePrefixTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.6.2
+         */
+        simpleBeanInterfaceNamePrefix(n("eugene.java.tagvalue.simpleBeanInterfaceNamePrefix"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a prefix on the name of each generated interface of a simple bean.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanInterfaceNameSuffixTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.6.2
+         */
+        simpleBeanInterfaceNameSuffix(n("eugene.java.tagvalue.simpleBeanInterfaceNameSuffix"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * Tag value to use a super super-class for generated defaults class of a
+         * simple bean.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanDefaultsSuperClassTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.7.2
+         */
+        simpleBeanDefaultsSuperClass(n("eugene.java.tagvalue.simpleBeanDefaultsSuperClass"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a prefix on the name of each generated bean class.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanDefaultsClassNamePrefixTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.7.2
+         */
+        simpleBeanDefaultsClassNamePrefix(n("eugene.java.tagvalue.simpleBeanDefaultsClassNamePrefix"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a suffix on the name of each generated bean class.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanDefaultsClassNameSuffixTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 2.6.2
+         */
+        simpleBeanDefaultsClassNameSuffix(n("eugene.java.tagvalue.simpleBeanDefaultsClassNameSuffix"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * Tag value to use a super class for generated bean.
+         *
+         * If the bean needs Property change support (says you use the tag-value {@link JavaTemplatesStereoTypes#STEREOTYPE_SKIP_GENERATE_PROPERTY_CHANGE_SUPPORT},
+         * then your class must provide evrything for it.
+         *
+         * More over, if you use some collections in your bean you must also define
+         * two method named {@code getChild(Collection list, int index)} and
+         * {@code getChild(List list, int index)}
+         *
+         * See new code to know minimum stuff to add in your class for this purpose.
+         * <pre>
+         * public abstract class AbstractBean implements Serializable {
+         *
+         *     private static final long serialVersionUID = 1L;
+         *
+         *     protected final PropertyChangeSupport pcs = new PropertyChangeSupport(this);
+         *
+         *     public void addPropertyChangeListener(PropertyChangeListener listener) {
+         *         pcs.addPropertyChangeListener(listener);
+         *     }
+         *
+         *     public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener) {
+         *         pcs.addPropertyChangeListener(propertyName, listener);
+         *     }
+         *
+         *     public void removePropertyChangeListener(PropertyChangeListener listener) {
+         *         pcs.removePropertyChangeListener(listener);
+         *     }
+         *
+         *     public void removePropertyChangeListener(String propertyName, PropertyChangeListener listener) {
+         *         pcs.removePropertyChangeListener(propertyName, listener);
+         *     }
+         *
+         *     protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {
+         *         pcs.firePropertyChange(propertyName, oldValue, newValue);
+         *     }
+         *
+         *     protected void firePropertyChange(String propertyName, Object newValue) {
+         *         firePropertyChange(propertyName, null, newValue);
+         *     }
+         *
+         *     protected <T> T getChild(Collection<T> list, int index) {
+         *         return CollectionUtil.getOrNull(list, index);
+         *     }
+         *
+         *     protected <T> T getChild(List<T> list, int index) {
+         *         return CollectionUtil.getOrNull(list, index);
+         *     }
+         * }
+         * </pre>
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanWithNoInterfaceSuperClassTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        simpleBeanWithNoInterfaceSuperClass(n("eugene.java.tagvalue.simpleBeanWithNoInterfaceSuperClass"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * Tag value to use a super super-class for generated defaults class of a simple bean.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanWithNoInterfaceDefaultsSuperClassTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        simpleBeanWithNoInterfaceDefaultsSuperClass(n("eugene.java.tagvalue.simpleBeanWithNoInterfaceDefaultsSuperClass"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a prefix on the name of each generated bean class.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanClassNamePrefixTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        simpleBeanWithNoInterfaceClassNamePrefix(n("eugene.java.tagvalue.simpleBeanWithNoInterfaceClassNamePrefix"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a prefix on the name of each generated bean class.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanClassNameSuffixTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        simpleBeanWithNoInterfaceClassNameSuffix(n("eugene.java.tagvalue.simpleBeanWithNoInterfaceClassNameSuffix"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a prefix on the name of each generated bean class.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanWithNoInterfaceDefaultsClassNamePrefixTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        simpleBeanWithNoInterfaceDefaultsClassNamePrefix(n("eugene.java.tagvalue.simpleBeanWithNoInterfaceDefaultsClassNamePrefix"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a suffix on the name of each generated bean class.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @see #getSimpleBeanWithNoInterfaceDefaultsClassNameSuffixTagValue(ObjectModelClassifier, ObjectModelPackage, ObjectModel)
+         * @since 3.0
+         */
+        simpleBeanWithNoInterfaceDefaultsClassNameSuffix(n("eugene.java.tagvalue.simpleBeanWithNoInterfaceDefaultsClassNameSuffix"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To use java 8 new syntax and api in generation.
+         *
+         * You can globaly use it on the complete model.
+         *
+         * @see #isUseJava8(ObjectModel)
+         * @since 2.15
+         */
+        java8(n("eugene.java.tagvalue.java8"), boolean.class, "false", ObjectModel.class);
+
+        private final Set<Class<?>> targets;
+        private final Class<?> type;
+        private final String i18nDocumentationKey;
+        private final String defaultValue;
+
+        Store(String i18nDocumentationKey, Class<?> type, String defaultValue, Class<?>... targets) {
+            this.targets = ImmutableSet.copyOf(targets);
+            this.type = type;
+            this.i18nDocumentationKey = i18nDocumentationKey;
+            this.defaultValue = defaultValue;
+        }
+
+        @Override
+        public String getName() {
+            return name();
+        }
+
+        @Override
+        public Set<Class<?>> getTargets() {
+            return targets;
+        }
+
+        @Override
+        public Class<?> getType() {
+            return type;
+        }
+
+        @Override
+        public Class<EqualsTagValueNameMatcher> getMatcherClass() {
+            return EqualsTagValueNameMatcher.class;
+        }
+
+        @Override
+        public String getI18nDocumentationKey() {
+            return i18nDocumentationKey;
+        }
+
+        @Override
+        public String getDefaultValue() {
+            return defaultValue;
+        }
+
+        @Override
+        public boolean isDeprecated() {
+            return false;
+        }
+
+    }
+
+    public EugeneJavaTagValues() {
+        super((TagValueMetadata[]) Store.values());
+    }
+
+
+    /**
+     * Obtain the value of the {@link Store#beanSuperClass} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#beanSuperClass
+     * @since 2.3
+     */
+    public String getBeanSuperClassTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.beanSuperClass, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanSuperClass} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanSuperClass
+     * @since 2.6.2
+     */
+    public String getSimpleBeanSuperClassTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanSuperClass, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanInterfaceSuperClass} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanInterfaceSuperClass
+     * @since 2.6.2
+     */
+    public String getSimpleBeanInterfaceSuperClassTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanInterfaceSuperClass, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanClassNamePrefix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanClassNamePrefix
+     * @since 2.6.2
+     */
+    public String getSimpleBeanClassNamePrefixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanClassNamePrefix, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanClassNameSuffix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanClassNameSuffix
+     * @since 2.6.2
+     */
+    public String getSimpleBeanClassNameSuffixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanClassNameSuffix, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanInterfaceNamePrefix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanInterfaceNamePrefix
+     * @since 2.6.2
+     */
+    public String getSimpleBeanInterfaceNamePrefixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanInterfaceNamePrefix, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanInterfaceNameSuffix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanInterfaceNameSuffix
+     * @since 2.6.2
+     */
+    public String getSimpleBeanInterfaceNameSuffixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanInterfaceNameSuffix, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanDefaultsSuperClass} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanDefaultsSuperClass
+     * @since 2.7.2
+     */
+    public String getSimpleBeanDefaultsSuperClassTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanDefaultsSuperClass, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanDefaultsClassNamePrefix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanDefaultsClassNamePrefix
+     * @since 2.7.2
+     */
+    public String getSimpleBeanDefaultsClassNamePrefixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanDefaultsClassNamePrefix, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanDefaultsClassNameSuffix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * <strong>If not filled, then use default {@code s} value.</strong>
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanDefaultsClassNameSuffix
+     * @since 2.6.2
+     */
+    public String getSimpleBeanDefaultsClassNameSuffixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        String value = TagValueUtil.findTagValue(Store.simpleBeanDefaultsClassNameSuffix, classifier, aPackage, model);
+        if (StringUtils.isBlank(value)) {
+            value = "s";
+        }
+        return value;
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanWithNoInterfaceSuperClass} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanWithNoInterfaceSuperClass
+     * @since 3.0
+     */
+    public String getSimpleBeanWithNoInterfaceSuperClassTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanWithNoInterfaceSuperClass, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanWithNoInterfaceDefaultsSuperClass} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanWithNoInterfaceDefaultsSuperClass
+     * @since 3.0
+     */
+    public String getSimpleBeanWithNoInterfaceDefaultsSuperClassTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanWithNoInterfaceDefaultsSuperClass, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanWithNoInterfaceClassNamePrefix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanWithNoInterfaceClassNamePrefix
+     * @since 3.0
+     */
+    public String getSimpleBeanWithNoInterfaceClassNamePrefixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanWithNoInterfaceClassNamePrefix, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanWithNoInterfaceClassNameSuffix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanWithNoInterfaceClassNameSuffix
+     * @since 3.0
+     */
+    public String getSimpleBeanWithNoInterfaceClassNameSuffixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanWithNoInterfaceClassNameSuffix, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanWithNoInterfaceDefaultsClassNamePrefix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanWithNoInterfaceDefaultsClassNamePrefix
+     * @since 3.0
+     */
+    public String getSimpleBeanWithNoInterfaceDefaultsClassNamePrefixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.simpleBeanWithNoInterfaceDefaultsClassNamePrefix, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#simpleBeanWithNoInterfaceDefaultsClassNameSuffix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * <strong>If not filled, then use default {@code s} value.</strong>
+     *
+     * @param classifier classifier to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#simpleBeanWithNoInterfaceDefaultsClassNameSuffix
+     * @since 3.0
+     */
+    public String getSimpleBeanWithNoInterfaceDefaultsClassNameSuffixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        String value = TagValueUtil.findTagValue(Store.simpleBeanWithNoInterfaceDefaultsClassNameSuffix, classifier, aPackage, model);
+        if (StringUtils.isBlank(value)) {
+            value = "s";
+        }
+        return value;
+    }
+
+    /**
+     * Obtain the value of the {@link Store#java8} tag value on the given model.
+     *
+     * @param model model to seek
+     * @return {@code true} the none empty value of the found tag value or {@code false} if not found nor empty.
+     * @see Store#java8
+     * @since 2.15
+     */
+    public boolean isUseJava8(ObjectModel model) {
+        return TagValueUtil.findBooleanTagValue(Store.java8, model);
+    }
+
+}
diff --git a/eugene-java-templates/src/main/java/org/nuiton/eugene/java/JavaEnumerationTransformer.java b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/JavaEnumerationTransformer.java
index a7f73fe..07880d1 100644
--- a/eugene-java-templates/src/main/java/org/nuiton/eugene/java/JavaEnumerationTransformer.java
+++ b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/JavaEnumerationTransformer.java
@@ -27,7 +27,7 @@ package org.nuiton.eugene.java;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.nuiton.eugene.EugeneStereoTypes;
+import org.nuiton.eugene.EugeneCoreStereotypes;
 import org.nuiton.eugene.models.object.ObjectModelEnumeration;
 import org.nuiton.eugene.models.object.ObjectModelPackage;
 
@@ -72,7 +72,7 @@ public class JavaEnumerationTransformer extends ObjectModelTransformerToJava {
 
     protected boolean canGenerate(ObjectModelEnumeration input) {
         ObjectModelPackage aPackage = getPackage(input);
-        boolean b = !EugeneStereoTypes.hasSkipStereotype(input, aPackage);
+        boolean b = !EugeneCoreStereotypes.hasSkipStereotype(input, aPackage);
         if (b) {
 
             // check if not found in class-path
diff --git a/eugene-java-templates/src/main/java/org/nuiton/eugene/java/JavaTemplatesStereoTypes.java b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/JavaTemplatesStereoTypes.java
index c4402e8..7344287 100644
--- a/eugene-java-templates/src/main/java/org/nuiton/eugene/java/JavaTemplatesStereoTypes.java
+++ b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/JavaTemplatesStereoTypes.java
@@ -204,7 +204,7 @@ public class JavaTemplatesStereoTypes extends StereotypeDefinitionProvider {
             target = {ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class},
             documentation = "To generate or not constructors predicates on propertyes on beans.\n" +
                             "(only effective with simple bean with no interface generator)")
-    public static final String STEREOTYPE_SIMPLE_BEAN_WITH_NO_INTERFACE_SKIP_GENERATE_DEFAULT_CONSTRUCTORS= "simpleBeanWithNoInterfaceGenerateConstructors";
+    public static final String STEREOTYPE_SIMPLE_BEAN_WITH_NO_INTERFACE_SKIP_GENERATE_DEFAULT_CONSTRUCTORS= "simpleBeanWithNoInterfaceSkipGenerateConstructors";
 
     /**
      * Check if the given classifier has the {@link #STEREOTYPE_BEAN} stereotype.
diff --git a/eugene-java-templates/src/main/java/org/nuiton/eugene/java/SimpleJavaBeanWithNoInterfaceTransformer.java b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/SimpleJavaBeanWithNoInterfaceTransformer.java
index b3ce62f..705218c 100644
--- a/eugene-java-templates/src/main/java/org/nuiton/eugene/java/SimpleJavaBeanWithNoInterfaceTransformer.java
+++ b/eugene-java-templates/src/main/java/org/nuiton/eugene/java/SimpleJavaBeanWithNoInterfaceTransformer.java
@@ -88,8 +88,8 @@ public class SimpleJavaBeanWithNoInterfaceTransformer extends AbstractJavaBeanTr
         ImmutableSet.Builder<ObjectModelClass> beanClassesBuilder = new ImmutableSet.Builder<>();
         ImmutableSet.Builder<ObjectModelClass> beanDefaultClassesBuilder = new ImmutableSet.Builder<>();
 
-        JavaTemplatesTagValues javaTemplatesTagValues = getJavaTemplatesTagValues();
-        JavaTemplatesStereoTypes javaTemplatesStereoTypes = getJavaTemplatesStereoTypes();
+        EugeneJavaTagValues javaTemplatesTagValues = getJavaTemplatesTagValues();
+        EugeneJavaStereoTypes javaTemplatesStereoTypes = getJavaTemplatesStereoTypes();
 
         for (ObjectModelClass aClass : model.getClasses()) {
 
diff --git a/eugene-java-templates/src/main/resources/META-INF/services/org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider b/eugene-java-templates/src/main/resources/META-INF/services/org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider
new file mode 100644
index 0000000..a0b948a
--- /dev/null
+++ b/eugene-java-templates/src/main/resources/META-INF/services/org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider
@@ -0,0 +1 @@
+org.nuiton.eugene.java.EugeneJavaStereoTypes
\ No newline at end of file
diff --git a/eugene-java-templates/src/main/resources/META-INF/services/org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider b/eugene-java-templates/src/main/resources/META-INF/services/org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider
new file mode 100644
index 0000000..982aa83
--- /dev/null
+++ b/eugene-java-templates/src/main/resources/META-INF/services/org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider
@@ -0,0 +1 @@
+org.nuiton.eugene.java.EugeneJavaTagValues
\ No newline at end of file
diff --git a/eugene-java-templates/src/test/java/org/nuiton/eugene/java/EugeneJavaStereoTypesTest.java b/eugene-java-templates/src/test/java/org/nuiton/eugene/java/EugeneJavaStereoTypesTest.java
new file mode 100644
index 0000000..1ebd33b
--- /dev/null
+++ b/eugene-java-templates/src/test/java/org/nuiton/eugene/java/EugeneJavaStereoTypesTest.java
@@ -0,0 +1,80 @@
+package org.nuiton.eugene.java;
+
+/*
+ * #%L
+ * EUGene :: Java templates
+ * %%
+ * Copyright (C) 2012 - 2014 CodeLutin
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Lesser Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Lesser Public
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/lgpl-3.0.html>.
+ * #L%
+ */
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.nuiton.eugene.models.extension.stereotype.MismatchStereotypeTargetException;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeNotFoundException;
+import org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider;
+import org.nuiton.eugene.models.object.ObjectModel;
+import org.nuiton.eugene.models.object.ObjectModelAttribute;
+import org.nuiton.eugene.models.object.ObjectModelClass;
+import org.nuiton.eugene.models.object.ObjectModelClassifier;
+import org.nuiton.eugene.models.object.ObjectModelEnumeration;
+import org.nuiton.eugene.models.object.ObjectModelInterface;
+import org.nuiton.eugene.models.object.ObjectModelOperation;
+import org.nuiton.eugene.models.object.ObjectModelPackage;
+
+public class EugeneJavaStereoTypesTest {
+
+    protected StereotypeMetadatasProvider provider;
+
+    @Before
+    public void setUp() throws Exception {
+        provider = new EugeneJavaStereoTypes();
+    }
+
+    @Test
+    public void validate() throws Exception {
+
+        validate(EugeneJavaStereoTypes.Store.bean.getName(), true, ObjectModelPackage.class, ObjectModelClassifier.class, ObjectModelClass.class, ObjectModelEnumeration.class, ObjectModelInterface.class);
+        validate(EugeneJavaStereoTypes.Store.generateNotEmptyCollections.getName(), true, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class, ObjectModelClass.class, ObjectModelEnumeration.class);
+        validate(EugeneJavaStereoTypes.Store.generatePropertyChangeSupport.getName(), true, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class, ObjectModelClass.class, ObjectModelEnumeration.class);
+        validate(EugeneJavaStereoTypes.Store.generateNotEmptyCollections.getName(), false, ObjectModelOperation.class, ObjectModelAttribute.class);
+        validate(EugeneJavaStereoTypes.Store.generatePropertyChangeSupport.getName(), false, ObjectModelOperation.class, ObjectModelAttribute.class);
+
+        validate(EugeneJavaStereoTypes.Store.bean.getName(), false, ObjectModel.class, ObjectModelOperation.class);
+
+        long l = System.nanoTime();
+        validate(EugeneJavaStereoTypes.Store.bean.getName() + l, false, ObjectModelPackage.class, ObjectModel.class, ObjectModelOperation.class);
+        validate(EugeneJavaStereoTypes.Store.generateNotEmptyCollections.getName() + l, false, ObjectModelPackage.class, ObjectModelOperation.class, ObjectModelAttribute.class);
+        validate(EugeneJavaStereoTypes.Store.generatePropertyChangeSupport.getName() + l, false, ObjectModelPackage.class, ObjectModelOperation.class, ObjectModelAttribute.class);
+
+    }
+
+    protected void validate(String name, boolean expected, Class<?>... types) {
+        for (Class<?> type : types) {
+            try {
+                provider.validate(name, type);
+                Assert.assertTrue(expected);
+            } catch (StereotypeNotFoundException e) {
+                Assert.assertFalse(expected);
+            } catch (MismatchStereotypeTargetException e) {
+                Assert.assertFalse(expected);
+            }
+        }
+    }
+
+}
diff --git a/eugene-java-templates/src/test/java/org/nuiton/eugene/java/EugeneJavaTagValuesTest.java b/eugene-java-templates/src/test/java/org/nuiton/eugene/java/EugeneJavaTagValuesTest.java
new file mode 100644
index 0000000..6dd1643
--- /dev/null
+++ b/eugene-java-templates/src/test/java/org/nuiton/eugene/java/EugeneJavaTagValuesTest.java
@@ -0,0 +1,71 @@
+package org.nuiton.eugene.java;
+
+/*
+ * #%L
+ * EUGene :: Java templates
+ * %%
+ * Copyright (C) 2012 - 2014 CodeLutin
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Lesser Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Lesser Public
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/lgpl-3.0.html>.
+ * #L%
+ */
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.nuiton.eugene.models.extension.tagvalue.MismatchTagValueTargetException;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueNotFoundException;
+import org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider;
+import org.nuiton.eugene.models.object.ObjectModel;
+import org.nuiton.eugene.models.object.ObjectModelAttribute;
+import org.nuiton.eugene.models.object.ObjectModelClass;
+import org.nuiton.eugene.models.object.ObjectModelClassifier;
+import org.nuiton.eugene.models.object.ObjectModelEnumeration;
+import org.nuiton.eugene.models.object.ObjectModelOperation;
+import org.nuiton.eugene.models.object.ObjectModelPackage;
+
+public class EugeneJavaTagValuesTest {
+
+    protected TagValueMetadatasProvider provider;
+
+    @Before
+    public void setUp() throws Exception {
+        provider = new EugeneJavaTagValues();
+    }
+
+    @Test
+    public void validate() throws Exception {
+        validate(EugeneJavaTagValues.Store.beanSuperClass.getName(), true, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class, ObjectModelClass.class, ObjectModelEnumeration.class);
+        validate(EugeneJavaTagValues.Store.beanSuperClass.getName(), false, ObjectModelOperation.class, ObjectModelAttribute.class);
+
+        long l = System.nanoTime();
+        validate(EugeneJavaTagValues.Store.beanSuperClass.getName() + l, false, ObjectModelPackage.class, ObjectModelOperation.class, ObjectModelAttribute.class);
+    }
+
+
+    protected void validate(String name, boolean expected, Class<?>... types) {
+        for (Class<?> type : types) {
+            try {
+                provider.validate(name, type);
+                Assert.assertTrue(expected);
+            } catch (TagValueNotFoundException e) {
+                Assert.assertFalse(expected);
+            } catch (MismatchTagValueTargetException e) {
+                Assert.assertFalse(expected);
+            }
+        }
+    }
+
+}
diff --git a/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/GenerateMojo.java b/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/GenerateMojo.java
index a76908c..0172e55 100644
--- a/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/GenerateMojo.java
+++ b/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/GenerateMojo.java
@@ -38,15 +38,13 @@ import org.nuiton.eugene.ModelHelper;
 import org.nuiton.eugene.ModelReader;
 import org.nuiton.eugene.Template;
 import org.nuiton.eugene.models.Model;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeMetadatasProviderManagerExtension;
+import org.nuiton.eugene.models.extension.stereotype.provider.AggregateStereotypeMetadatasProvider;
+import org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadatasProviderManagerExtension;
+import org.nuiton.eugene.models.extension.tagvalue.provider.AggregateTagValueMetadatasProvider;
+import org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider;
 import org.nuiton.eugene.models.object.reader.InvalidModelPropertiesException;
-import org.nuiton.eugene.models.stereotype.AggregateStereotypeDefinitionProvider;
-import org.nuiton.eugene.models.stereotype.StereotypeDefinitionProvider;
-import org.nuiton.eugene.models.stereotype.StereotypeDefinitionProviderManagerExtension;
-import org.nuiton.eugene.models.stereotype.StereotypeDefinitionProviders;
-import org.nuiton.eugene.models.tagvalue.AggregateTagValueDefinitionProvider;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProvider;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProviderManagerExtension;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProviders;
 import org.nuiton.eugene.plugin.writer.BaseChainedFileWriter;
 import org.nuiton.eugene.plugin.writer.BaseChainedFileWriterToMemoryModel;
 import org.nuiton.eugene.plugin.writer.XmiChainedFileWriter;
@@ -336,22 +334,38 @@ public class GenerateMojo extends AbstractPlugin implements ChainedFileWriterCon
     /** All available templates introspects via plexus. */
     @Component(role = Template.class)
     protected Map<String, Template<?>> modelTemplates;
+//
+//    /**
+//     * All available stereotype providers introspects via plexus.
+//     *
+//     * @since 2.9
+//     */
+//    @Component(role = StereotypeMetadatasProvider.class)
+//    protected Map<String, StereotypeMetadatasProvider> stereotypeMetadatasProviders;
+//
+//    /**
+//     * All available tag value providers introspects via plexus.
+//     *
+//     * @since 2.9
+//     */
+//    @Component(role = TagValueMetadatasProvider.class)
+//    protected Map<String, TagValueMetadatasProvider> tagValueMetadatasProviders;
 
     /**
      * All available stereotype providers introspects via plexus.
      *
-     * @since 2.9
+     * @since 3.0
      */
-    @Component(role = StereotypeDefinitionProvider.class)
-    protected Map<String, StereotypeDefinitionProvider> stereotypeDefinitionProviders;
+    @Component(role = StereotypeMetadatasProvider.class)
+    protected Set<StereotypeMetadatasProvider> stereotypeMetadatasProviders;
 
     /**
      * All available tag value providers introspects via plexus.
      *
-     * @since 2.9
+     * @since 3.0
      */
-    @Component(role = TagValueDefinitionProvider.class)
-    protected Map<String, TagValueDefinitionProvider> tagValueDefinitionProviders;
+    @Component(role = TagValueMetadatasProvider.class)
+    protected Set<TagValueMetadatasProvider> tagValueMetadatasProviders;
 
     /** The engine to compute {@link ChainedFileWriter} from inputs entries. */
     @Component(role = ChainedWriterEngine.class)
@@ -471,10 +485,10 @@ public class GenerateMojo extends AbstractPlugin implements ChainedFileWriterCon
             // add model writer support
 
             properties.put(BaseChainedFileWriterToMemoryModel.PROP_TAG_VALUE_DEFINITION_PROVIDER,
-                           getTagValueDefinitionProvider());
+                           getTagValueMetadatasProvider());
 
             properties.put(BaseChainedFileWriterToMemoryModel.PROP_STEREOTYPE_DEFINITION_PROVIDER,
-                           getStereotypeDefinitionProvider());
+                           getStereotypeMetadatasProvider());
 
             properties.put(BaseChainedFileWriterToMemoryModel.PROP_FAIL_IF_UNSAFE,
                            failIfUnsafe);
@@ -578,19 +592,19 @@ public class GenerateMojo extends AbstractPlugin implements ChainedFileWriterCon
 
                 getLog().info("Process phase [generator]");
 
-                AggregateTagValueDefinitionProvider tagValueDefinitionProvider = getTagValueDefinitionProvider();
-                AggregateStereotypeDefinitionProvider stereotypeDefinitionProvider = getStereotypeDefinitionProvider();
+                AggregateTagValueMetadatasProvider tagValueMetadatasProvider = getTagValueMetadatasProvider();
+                AggregateStereotypeMetadatasProvider stereotypeMetadatasProvider = getStereotypeMetadatasProvider();
 
                 for (ChainedFileWriterToMemoryModel entry : models) {
                     Model model = entry.getModel();
 
                     // init tag values extension
-                    TagValueDefinitionProviderManagerExtension extension = model.getExtension(TagValueDefinitionProviderManagerExtension.OBJECTMODEL_EXTENSION, TagValueDefinitionProviderManagerExtension.class);
-                    extension.setAggregateTagValueDefinitionProvider(tagValueDefinitionProvider);
+                    TagValueMetadatasProviderManagerExtension extension = model.getExtension(TagValueMetadatasProviderManagerExtension.OBJECTMODEL_EXTENSION, TagValueMetadatasProviderManagerExtension.class);
+                    extension.setProdiver(tagValueMetadatasProvider);
 
                     // init stereotype extension
-                    StereotypeDefinitionProviderManagerExtension stereotypeExtension = model.getExtension(StereotypeDefinitionProviderManagerExtension.OBJECTMODEL_EXTENSION, StereotypeDefinitionProviderManagerExtension.class);
-                    stereotypeExtension.setAggregateStereotypeDefinitionProvider(stereotypeDefinitionProvider);
+                    StereotypeMetadatasProviderManagerExtension stereotypeExtension = model.getExtension(StereotypeMetadatasProviderManagerExtension.OBJECTMODEL_EXTENSION, StereotypeMetadatasProviderManagerExtension.class);
+                    stereotypeExtension.setProdiver(stereotypeMetadatasProvider);
 
                     Long lastModified = entry.getLastModifiedSource();
                     File outputDir = entry.getOutputDirectory();
@@ -953,51 +967,39 @@ public class GenerateMojo extends AbstractPlugin implements ChainedFileWriterCon
         }
     }
 
-    protected AggregateTagValueDefinitionProvider getTagValueDefinitionProvider() throws MojoExecutionException {
+    protected AggregateTagValueMetadatasProvider getTagValueMetadatasProvider() throws MojoExecutionException {
 
-        AggregateTagValueDefinitionProvider provider;
+        AggregateTagValueMetadatasProvider provider;
 
-        if (tagValueDefinitionProviders == null ||
-            tagValueDefinitionProviders.isEmpty() ||
+        if (tagValueMetadatasProviders == null ||
+            tagValueMetadatasProviders.isEmpty() ||
             isTestPhase()) {
 
             // could not find any model properties via plexus
             // try to obtain them by ServiceLoader
 
-            provider = TagValueDefinitionProviders.newProvider(
-                    getFixedClassLoader(),
-                    verbose
-            );
+            provider = new AggregateTagValueMetadatasProvider(getFixedClassLoader());
         } else {
-            provider = TagValueDefinitionProviders.newProvider(
-                    tagValueDefinitionProviders.values(),
-                    verbose
-            );
+            provider = new AggregateTagValueMetadatasProvider(tagValueMetadatasProviders);
         }
         return provider;
     }
 
 
-    protected AggregateStereotypeDefinitionProvider getStereotypeDefinitionProvider() throws MojoExecutionException {
+    protected AggregateStereotypeMetadatasProvider getStereotypeMetadatasProvider() throws MojoExecutionException {
 
-        AggregateStereotypeDefinitionProvider provider;
+        AggregateStereotypeMetadatasProvider provider;
 
-        if (stereotypeDefinitionProviders == null ||
-            stereotypeDefinitionProviders.isEmpty() ||
+        if (stereotypeMetadatasProviders == null ||
+            stereotypeMetadatasProviders.isEmpty() ||
             isTestPhase()) {
 
             // could not find any model properties via plexus
             // try to obtain them by ServiceLoader
 
-            provider = StereotypeDefinitionProviders.newProvider(
-                    getFixedClassLoader(),
-                    verbose
-            );
+            provider = new AggregateStereotypeMetadatasProvider(getFixedClassLoader());
         } else {
-            provider = StereotypeDefinitionProviders.newProvider(
-                    stereotypeDefinitionProviders.values(),
-                    verbose
-            );
+            provider = new AggregateStereotypeMetadatasProvider(stereotypeMetadatasProviders);
         }
         return provider;
     }
diff --git a/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/modelextension/ElementBean.java b/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/modelextension/ElementBean.java
index 1cb6527..8774075 100644
--- a/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/modelextension/ElementBean.java
+++ b/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/modelextension/ElementBean.java
@@ -22,7 +22,7 @@ package org.nuiton.eugene.plugin.modelextension;
  * #L%
  */
 
-import org.nuiton.eugene.models.stereotype.StereotypeAble;
+import org.nuiton.eugene.models.extension.stereotype.WithStereotypes;
 import org.nuiton.eugene.models.tagvalue.TagValueAble;
 
 import java.util.Map;
@@ -64,7 +64,7 @@ public class ElementBean implements Comparable<ElementBean> {
         return name.compareTo(o.name);
     }
 
-    public <T extends TagValueAble & StereotypeAble> void load(T tag) {
+    public <T extends TagValueAble & WithStereotypes> void load(T tag) {
         this.tagValues.putAll(tag.getTagValues());
         this.stereotypes.addAll(tag.getStereotypes());
     }
diff --git a/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/modelextension/ModelBeanBuilder.java b/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/modelextension/ModelBeanBuilder.java
index b6bf10b..3162419 100644
--- a/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/modelextension/ModelBeanBuilder.java
+++ b/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/modelextension/ModelBeanBuilder.java
@@ -22,11 +22,11 @@ package org.nuiton.eugene.plugin.modelextension;
  * #L%
  */
 
+import org.nuiton.eugene.models.extension.stereotype.InvalidStereotypeSyntaxException;
+import org.nuiton.eugene.models.extension.tagvalue.InvalidTagValueSyntaxException;
 import org.nuiton.eugene.models.object.reader.extension.ModelExtensionFileParser;
 import org.nuiton.eugene.models.object.reader.extension.ModelExtensionFileParserCallback;
 import org.nuiton.eugene.models.object.reader.extension.ModelExtensionFileParserFactory;
-import org.nuiton.eugene.models.stereotype.InvalidStereotypeSyntaxException;
-import org.nuiton.eugene.models.tagvalue.InvalidTagValueSyntaxException;
 
 import java.io.File;
 import java.io.IOException;
diff --git a/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/writer/BaseChainedFileWriterToMemoryModel.java b/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/writer/BaseChainedFileWriterToMemoryModel.java
index b714592..897c546 100644
--- a/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/writer/BaseChainedFileWriterToMemoryModel.java
+++ b/eugene-maven-plugin/src/main/java/org/nuiton/eugene/plugin/writer/BaseChainedFileWriterToMemoryModel.java
@@ -24,12 +24,12 @@ package org.nuiton.eugene.plugin.writer;
 
 import org.nuiton.eugene.ModelReader;
 import org.nuiton.eugene.models.Model;
+import org.nuiton.eugene.models.extension.stereotype.InvalidStereotypeSyntaxException;
+import org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider;
+import org.nuiton.eugene.models.extension.tagvalue.InvalidTagValueSyntaxException;
+import org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider;
 import org.nuiton.eugene.models.object.ObjectModel;
 import org.nuiton.eugene.models.object.reader.extension.LoadModelExtension;
-import org.nuiton.eugene.models.stereotype.InvalidStereotypeSyntaxException;
-import org.nuiton.eugene.models.stereotype.StereotypeDefinitionProvider;
-import org.nuiton.eugene.models.tagvalue.InvalidTagValueSyntaxException;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProvider;
 import org.nuiton.eugene.writer.ChainedFileWriterConfiguration;
 import org.nuiton.eugene.writer.ChainedFileWriterToMemoryModel;
 
@@ -51,9 +51,9 @@ public abstract class BaseChainedFileWriterToMemoryModel extends BaseChainedFile
 
     public static final String PROP_MODEL_READER = "modelReader";
 
-    public static final String PROP_TAG_VALUE_DEFINITION_PROVIDER = "tagValueDefinitionProvider";
+    public static final String PROP_TAG_VALUE_DEFINITION_PROVIDER = "tagValueMetadatasProvider";
 
-    public static final String PROP_STEREOTYPE_DEFINITION_PROVIDER = "stereotypeDefinitionProvider";
+    public static final String PROP_STEREOTYPE_DEFINITION_PROVIDER = "stereotypeMetadatasProvider";
 
     public static final String PROP_FAIL_IF_UNSAFE = "failIfUnsafe";
 
@@ -72,8 +72,8 @@ public abstract class BaseChainedFileWriterToMemoryModel extends BaseChainedFile
         super(
                 PROP_READER, "reader",
                 PROP_MODEL_READER, "xmlModelReader",
-                PROP_TAG_VALUE_DEFINITION_PROVIDER, "tagValueDefinitionProvider",
-                PROP_STEREOTYPE_DEFINITION_PROVIDER, "stereotypeDefinitionProvider",
+                PROP_TAG_VALUE_DEFINITION_PROVIDER, "tagValueMetadatasProvider",
+                PROP_STEREOTYPE_DEFINITION_PROVIDER, "stereotypeMetadatasProvider",
                 PROP_MODEL_PROPERTIES_PROVIDER, "modelPropertiesProvider",
                 PROP_FAIL_IF_UNSAFE, "failIfUnsafe"
         );
@@ -117,12 +117,12 @@ public abstract class BaseChainedFileWriterToMemoryModel extends BaseChainedFile
         return getProperty(PROP_READER, String.class);
     }
 
-    protected TagValueDefinitionProvider getTagValueDefinitionProvider() {
-        return getProperty(PROP_TAG_VALUE_DEFINITION_PROVIDER, TagValueDefinitionProvider.class);
+    protected TagValueMetadatasProvider getTagValueDefinitionProvider() {
+        return getProperty(PROP_TAG_VALUE_DEFINITION_PROVIDER, TagValueMetadatasProvider.class);
     }
 
-    protected StereotypeDefinitionProvider getStereotypeDefinitionProvider() {
-        return getProperty(PROP_STEREOTYPE_DEFINITION_PROVIDER, StereotypeDefinitionProvider.class);
+    protected StereotypeMetadatasProvider getStereotypeDefinitionProvider() {
+        return getProperty(PROP_STEREOTYPE_DEFINITION_PROVIDER, StereotypeMetadatasProvider.class);
     }
 
     protected boolean isFailIfUnsafe() {
@@ -181,8 +181,8 @@ public abstract class BaseChainedFileWriterToMemoryModel extends BaseChainedFile
 
         boolean verbose = configuration.isVerbose();
 
-        getModelReader().setStereotypeDefinitionProvider(getStereotypeDefinitionProvider());
-        getModelReader().setTagValueDefinitionProvider(getTagValueDefinitionProvider());
+        getModelReader().setStereotypeMetadatasProvider(getStereotypeDefinitionProvider());
+        getModelReader().setTagValueMetadatasProvider(getTagValueDefinitionProvider());
 
         // set the verbose level of the model reader
         getModelReader().setVerbose(verbose);
diff --git a/eugene/src/main/java/org/nuiton/eugene/EugeneCoreStereotypes.java b/eugene/src/main/java/org/nuiton/eugene/EugeneCoreStereotypes.java
new file mode 100644
index 0000000..b864d7d
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/EugeneCoreStereotypes.java
@@ -0,0 +1,133 @@
+package org.nuiton.eugene;
+
+import com.google.common.collect.ImmutableSet;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeMetadata;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeUtil;
+import org.nuiton.eugene.models.extension.stereotype.provider.DefaultStereotypeMetadatasProvider;
+import org.nuiton.eugene.models.object.ObjectModelAttribute;
+import org.nuiton.eugene.models.object.ObjectModelClassifier;
+import org.nuiton.eugene.models.object.ObjectModelPackage;
+
+import java.util.Set;
+
+import static org.nuiton.i18n.I18n.n;
+
+/**
+ * Defines all stereotypes managed by Eugene.
+ *
+ * In another library using eugene, please extends this contract to put your
+ * own stereotypes, to get a unique place where to find stereotypes.
+ *
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ * @plexus.component role="org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider" role-hint="eugene"
+ * @since 3.0
+ */
+public class EugeneCoreStereotypes extends DefaultStereotypeMetadatasProvider {
+
+    public enum Store implements StereotypeMetadata {
+        /**
+         * Stereotype to mark an attribute with multiplicity as ordered.
+         *
+         * It means that order of insertion is maintained: in Java, it will lead
+         * to a collection typed with {@link java.util.List} or {@link java.util.LinkedHashSet}
+         * or {@link java.util.LinkedHashMap}.
+         *
+         * @since 2.8
+         */
+        ordered(n("eugene.core.stereotypes.ordered"), ObjectModelAttribute.class),
+        /**
+         * Stereotype to mark an attribute with multiplicity as unique.
+         *
+         * It means that uniqueness of elements is maintained in the collection: in Java, it
+         * will lead to a collection typed with {@link java.util.Set}.
+         */
+        unique(n("eugene.core.stereotypes.unique"), ObjectModelAttribute.class),
+        /**
+         * Stereotype to skip generation for some transformer.
+         */
+        skip(n("eugene.core.stereotypes.skip"), ObjectModelClassifier.class, ObjectModelPackage.class);
+
+        private final Set<Class<?>> targets;
+        private final String i18nDocumentationKey;
+
+        Store(String i18nDocumentationKey, Class<?>... targets) {
+            this.targets = ImmutableSet.copyOf(targets);
+            this.i18nDocumentationKey = i18nDocumentationKey;
+        }
+
+        @Override
+        public String getName() {
+            return name();
+        }
+
+        @Override
+        public Set<Class<?>> getTargets() {
+            return targets;
+        }
+
+        @Override
+        public String getI18nDocumentationKey() {
+            return i18nDocumentationKey;
+        }
+
+        @Override
+        public boolean isDeprecated() {
+            return false;
+        }
+
+    }
+
+    public EugeneCoreStereotypes() {
+        super((StereotypeMetadata[]) Store.values());
+    }
+
+    /**
+     * Check if the given attribute has the {@link Store#ordered} stereotype.
+     *
+     * @param attribute attribute to test
+     * @return {@code true} if stereotype was found, {@code false otherwise}
+     * @see Store#ordered
+     * @since 2.9
+     */
+    public static boolean hasOrderedStereotype(ObjectModelAttribute attribute) {
+        return StereotypeUtil.findDirectStereotype(Store.ordered, attribute);
+    }
+
+    /**
+     * Check if the given attribute has the {@link Store#unique} stereotype.
+     *
+     * @param attribute attribute to test
+     * @return {@code true} if stereotype was found, {@code false otherwise}
+     * @see Store#unique
+     * @since 2.9
+     */
+    public static boolean hasUniqueStereotype(ObjectModelAttribute attribute) {
+        return StereotypeUtil.findDirectStereotype(Store.unique, attribute);
+    }
+
+    /**
+     * Check if the given classifier has the {@link Store#skip} stereotype.
+     *
+     * @param classifier classifier to test
+     * @param aPackage   package to test
+     * @return {@code true} if stereotype was found, {@code false otherwise}
+     * @see Store#skip
+     * @since 2.9
+     */
+    public static boolean hasSkipStereotype(ObjectModelClassifier classifier, ObjectModelPackage aPackage) {
+        return StereotypeUtil.findDirectStereotype(Store.skip, classifier, aPackage);
+    }
+
+    /**
+     * Check if the given package has the {@link Store#skip} stereotype.
+     *
+     * @param aPackage package to test
+     * @return {@code true} if stereotype was found, {@code false otherwise}
+     * @see Store#skip
+     */
+    public static boolean hasSkipStereotype(ObjectModelPackage aPackage) {
+        return StereotypeUtil.findDirectStereotype(Store.skip, aPackage);
+    }
+}
diff --git a/eugene/src/main/java/org/nuiton/eugene/EugeneCoreTagValues.java b/eugene/src/main/java/org/nuiton/eugene/EugeneCoreTagValues.java
new file mode 100644
index 0000000..9145702
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/EugeneCoreTagValues.java
@@ -0,0 +1,236 @@
+package org.nuiton.eugene;
+
+import com.google.common.collect.ImmutableSet;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadata;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueUtil;
+import org.nuiton.eugene.models.extension.tagvalue.matcher.EqualsTagValueNameMatcher;
+import org.nuiton.eugene.models.extension.tagvalue.provider.DefaultTagValueMetadatasProvider;
+import org.nuiton.eugene.models.object.ObjectModel;
+import org.nuiton.eugene.models.object.ObjectModelAttribute;
+import org.nuiton.eugene.models.object.ObjectModelClassifier;
+import org.nuiton.eugene.models.object.ObjectModelElement;
+import org.nuiton.eugene.models.object.ObjectModelPackage;
+
+import java.util.Set;
+
+import static org.nuiton.i18n.I18n.n;
+
+/**
+ * Created on 24/09/16.
+ *
+ * Defines all tag values managed by Eugene.
+ *
+ * In another library using eugene, please extends this contract to put your
+ * own tag values, to get a unique place where to find tag values.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ * @plexus.component role="org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider" role-hint="eugene"
+ * @since 3.0
+ */
+public class EugeneCoreTagValues extends DefaultTagValueMetadatasProvider {
+
+    public enum Store implements TagValueMetadata {
+
+        /**
+         * Tag value to add the version of the model from outside (says in the
+         * properties file associated to the model)..
+         *
+         * Actually, the eugene api does not use to modify the model. ItaTa is only
+         * used while reading the properties associated with a model and if found is
+         * directly set to the {@code version} field of the model.
+         *
+         * @since 2.3
+         */
+        version(n("eugene.core.tagValues.version"), String.class, null, ObjectModel.class),
+
+        /**
+         * Tag value to add on constants enumeration (or other incoming dev)
+         * a prefix to constant to generate.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @since 2.5
+         */
+        documentation(n("eugene.core.tagValues.documentation"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelElement.class),
+
+        /**
+         * Tag value to add on constants enumeration (or other incoming dev)
+         * a prefix to constant to generate.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @since 2.3
+         */
+        constantPrefix(n("eugene.core.tagValues.constantPrefix"), String.class, "PROPERTY_", ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * Tag value to specify the i18n prefix to use whene generating i18n keys.
+         *
+         * You can globaly use it on the complete model or to a specific classifier.
+         *
+         * @since 2.3
+         */
+        i18n(n("eugene.core.tagValues.i18n"), String.class, null, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * Tag value to generate also {@code getXXX} methods for a boolean property.
+         *
+         * @since 2.12
+         */
+        generateBooleanGetMethods(n("eugene.core.tagValues.generateBooleanGetMethods"), boolean.class, "false", ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class),
+
+        /**
+         * To add a generic to an attribute.
+         *
+         * @since 3.0
+         */
+        attributeGeneric(n("eugene.core.tagValues.attributeGeneric"), String.class, null, ObjectModelAttribute.class);
+
+        private final Set<Class<?>> targets;
+        private final Class<?> type;
+        private final String i18nDocumentationKey;
+        private final String defaultValue;
+
+        Store(String i18nDocumentationKey, Class<?> type, String defaultValue, Class<?>... targets) {
+            this.targets = ImmutableSet.copyOf(targets);
+            this.type = type;
+            this.i18nDocumentationKey = i18nDocumentationKey;
+            this.defaultValue = defaultValue;
+        }
+
+        @Override
+        public String getName() {
+            return name();
+        }
+
+        @Override
+        public Set<Class<?>> getTargets() {
+            return targets;
+        }
+
+        @Override
+        public Class<?> getType() {
+            return type;
+        }
+
+        @Override
+        public Class<EqualsTagValueNameMatcher> getMatcherClass() {
+            return EqualsTagValueNameMatcher.class;
+        }
+
+        @Override
+        public String getI18nDocumentationKey() {
+            return i18nDocumentationKey;
+        }
+
+        @Override
+        public String getDefaultValue() {
+            return defaultValue;
+        }
+
+        @Override
+        public boolean isDeprecated() {
+            return false;
+        }
+
+    }
+
+    public EugeneCoreTagValues() {
+        super((TagValueMetadata[]) Store.values());
+    }
+
+    /**
+     * Obtain the value of the {@link Store#documentation} tag value on the given model.
+     *
+     * @param model model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#documentation
+     * @since 2.3
+     */
+    public String getDocumentationTagValue(ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.documentation, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#documentation} tag value on the given element.
+     *
+     * @param element element to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#documentation
+     * @since 2.3
+     */
+    public String getDocumentationTagValue(ObjectModelElement element) {
+        return TagValueUtil.findTagValue(Store.documentation, element);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#documentation} tag value on the given package.
+     *
+     * @param aPackage package to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#documentation
+     * @since 2.12
+     */
+    public String getDocumentationTagValue(ObjectModelPackage aPackage) {
+        return TagValueUtil.findTagValue(Store.documentation, aPackage);
+    }
+
+    /**
+     * Cherche et renvoie le prefixe i18n à utiliser sur cet element, sinon sur
+     * le model.
+     *
+     * @param element  l'élément à tester
+     * @param aPackage package to seek
+     * @param model    le modele utilisé
+     * @return le prefix i18n ou <code>null</code> si non spécifié
+     * @since 2.3
+     */
+    public String getI18nPrefixTagValue(ObjectModelElement element, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.i18n, element, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#generateBooleanGetMethods}
+     * tag value on the given model, package or classifier.
+     *
+     * It will first look on the model, then on package and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param aPackage   package to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#generateBooleanGetMethods
+     * @since 2.12
+     */
+    public boolean isGenerateBooleanGetMethods(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findBooleanTagValue(Store.generateBooleanGetMethods, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#constantPrefix} tag value on the given model or classifier.
+     *
+     * It will first look on the model, and then in the given classifier.
+     *
+     * @param classifier classifier to seek
+     * @param aPackage   package to seek
+     * @param model      model to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#constantPrefix
+     * @since 2.3
+     */
+    public String getConstantPrefixTagValue(ObjectModelClassifier classifier, ObjectModelPackage aPackage, ObjectModel model) {
+        return TagValueUtil.findTagValue(Store.constantPrefix, classifier, aPackage, model);
+    }
+
+    /**
+     * Obtain the value of the {@link Store#attributeGeneric} tag value on the given attribute.
+     *
+     * @param attribute attribute to seek
+     * @return the none empty value of the found tag value or {@code null} if not found nor empty.
+     * @see Store#attributeGeneric
+     * @since 3.0
+     */
+    public String getAttributeGenericTagValue(ObjectModelAttribute attribute) {
+        return TagValueUtil.findTagValue(Store.attributeGeneric, attribute);
+    }
+}
diff --git a/eugene/src/main/java/org/nuiton/eugene/EugeneStereoTypes.java b/eugene/src/main/java/org/nuiton/eugene/EugeneStereoTypes.java
index 2a124e3..401d25e 100644
--- a/eugene/src/main/java/org/nuiton/eugene/EugeneStereoTypes.java
+++ b/eugene/src/main/java/org/nuiton/eugene/EugeneStereoTypes.java
@@ -38,6 +38,7 @@ import org.nuiton.eugene.models.stereotype.Stereotypes;
  * @plexus.component role="org.nuiton.eugene.models.stereotype.StereotypeDefinitionProvider" role-hint="eugene"
  * @since 2.9
  */
+@Deprecated
 public class EugeneStereoTypes extends StereotypeDefinitionProvider {
 
     /**
diff --git a/eugene/src/main/java/org/nuiton/eugene/EugeneTagValues.java b/eugene/src/main/java/org/nuiton/eugene/EugeneTagValues.java
index 62ce261..beec633 100644
--- a/eugene/src/main/java/org/nuiton/eugene/EugeneTagValues.java
+++ b/eugene/src/main/java/org/nuiton/eugene/EugeneTagValues.java
@@ -39,6 +39,7 @@ import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProvider;
  * @plexus.component role="org.nuiton.eugene.models.tagvalue.TagValueDefinitionProvider" role-hint="eugene"
  * @since 2.3
  */
+@Deprecated
 public class EugeneTagValues extends TagValueDefinitionProvider {
 
     /**
diff --git a/eugene/src/main/java/org/nuiton/eugene/GeneratorUtil.java b/eugene/src/main/java/org/nuiton/eugene/GeneratorUtil.java
index 06c58cb..0fe6f0d 100644
--- a/eugene/src/main/java/org/nuiton/eugene/GeneratorUtil.java
+++ b/eugene/src/main/java/org/nuiton/eugene/GeneratorUtil.java
@@ -59,11 +59,7 @@ public class GeneratorUtil {
      * Static singleton instance used to read defaultValue
      * TODO-tchemit 2014-06-19 Remove this when remove deprecated methods using it
      */
-    protected final static EugeneTagValues EUGENE_TAG_VALUES = new EugeneTagValues();
-
-    static {
-        EUGENE_TAG_VALUES.init();
-    }
+    protected final static EugeneCoreTagValues EUGENE_CORE_TAG_VALUES = new EugeneCoreTagValues();
 
     /**
      * return parent package of given package (return given package if it is a root package)
diff --git a/eugene/src/main/java/org/nuiton/eugene/ModelReader.java b/eugene/src/main/java/org/nuiton/eugene/ModelReader.java
index 77f8c8f..827f9ae 100644
--- a/eugene/src/main/java/org/nuiton/eugene/ModelReader.java
+++ b/eugene/src/main/java/org/nuiton/eugene/ModelReader.java
@@ -23,8 +23,8 @@
 package org.nuiton.eugene;
 
 import org.nuiton.eugene.models.Model;
-import org.nuiton.eugene.models.stereotype.StereotypeDefinitionProvider;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProvider;
+import org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider;
+import org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider;
 
 import java.io.File;
 import java.io.IOException;
@@ -60,14 +60,14 @@ public abstract class ModelReader<M extends Model> {
      *
      * @since 2.9
      */
-    protected TagValueDefinitionProvider tagValueDefinitionProvider;
+    protected TagValueMetadatasProvider tagValueMetadatasProvider;
 
     /**
      * Provider of stereotypes.
      *
      * @since 2.9
      */
-    protected StereotypeDefinitionProvider stereotypeDefinitionProvider;
+    protected StereotypeMetadatasProvider stereotypeMetadatasProvider;
 
     /**
      * Gets the type of model.
@@ -111,31 +111,31 @@ public abstract class ModelReader<M extends Model> {
      */
     public abstract M read(File... file) throws IOException;
 
-    public TagValueDefinitionProvider getTagValueDefinitionProvider() {
-        return tagValueDefinitionProvider;
+    public TagValueMetadatasProvider getTagValueMetadatasProvider() {
+        return tagValueMetadatasProvider;
     }
 
     /**
      * Sets the provider of available tag values.
      *
-     * @param tagValueDefinitionProvider the provider to use
+     * @param tagValueMetadatasProvider the provider to use
      * @since 2.9
      */
-    public void setTagValueDefinitionProvider(TagValueDefinitionProvider tagValueDefinitionProvider) {
-        this.tagValueDefinitionProvider = tagValueDefinitionProvider;
+    public void setTagValueMetadatasProvider(TagValueMetadatasProvider tagValueMetadatasProvider) {
+        this.tagValueMetadatasProvider = tagValueMetadatasProvider;
     }
 
-    public StereotypeDefinitionProvider getStereotypeDefinitionProvider() {
-        return stereotypeDefinitionProvider;
+    public StereotypeMetadatasProvider getStereotypeMetadatasProvider() {
+        return stereotypeMetadatasProvider;
     }
 
     /**
      * Sets the provider of available stereotypes.
      *
-     * @param stereotypeDefinitionProvider the provider to use
+     * @param stereotypeMetadatasProvider the provider to use
      * @since 2.9
      */
-    public void setStereotypeDefinitionProvider(StereotypeDefinitionProvider stereotypeDefinitionProvider) {
-        this.stereotypeDefinitionProvider = stereotypeDefinitionProvider;
+    public void setStereotypeMetadatasProvider(StereotypeMetadatasProvider stereotypeMetadatasProvider) {
+        this.stereotypeMetadatasProvider = stereotypeMetadatasProvider;
     }
 }
diff --git a/eugene/src/main/java/org/nuiton/eugene/java/JavaGeneratorUtil.java b/eugene/src/main/java/org/nuiton/eugene/java/JavaGeneratorUtil.java
index 0561632..255371d 100644
--- a/eugene/src/main/java/org/nuiton/eugene/java/JavaGeneratorUtil.java
+++ b/eugene/src/main/java/org/nuiton/eugene/java/JavaGeneratorUtil.java
@@ -22,7 +22,7 @@
 package org.nuiton.eugene.java;
 
 import org.apache.commons.lang3.StringUtils;
-import org.nuiton.eugene.EugeneStereoTypes;
+import org.nuiton.eugene.EugeneCoreStereotypes;
 import org.nuiton.eugene.GeneratorUtil;
 import org.nuiton.eugene.models.object.ObjectModelAttribute;
 import org.nuiton.eugene.models.object.ObjectModelClass;
@@ -351,13 +351,13 @@ public class JavaGeneratorUtil extends GeneratorUtil {
     }
 
     public static boolean isOrdered(ObjectModelAttribute attr) {
-        return attr.isOrdered() || EugeneStereoTypes.hasOrderedStereotype(attr);
+        return attr.isOrdered() || EugeneCoreStereotypes.hasOrderedStereotype(attr);
     }
 
     public static Class<?> getCollectionType(ObjectModelAttribute attr) {
 
         boolean ordered = isOrdered(attr);
-        boolean unique = EugeneStereoTypes.hasUniqueStereotype(attr);
+        boolean unique = EugeneCoreStereotypes.hasUniqueStereotype(attr);
 
         // Change type for Multiple attribute
         Class<?> result;
@@ -381,7 +381,7 @@ public class JavaGeneratorUtil extends GeneratorUtil {
     public static Class<?> getCollectionInstanceType(ObjectModelAttribute attr) {
 
         boolean ordered = isOrdered(attr);
-        boolean unique = EugeneStereoTypes.hasUniqueStereotype(attr);
+        boolean unique = EugeneCoreStereotypes.hasUniqueStereotype(attr);
 
         // Change type for Multiple attribute
         Class<?> result;
diff --git a/eugene/src/main/java/org/nuiton/eugene/java/ObjectModelTransformerToJava.java b/eugene/src/main/java/org/nuiton/eugene/java/ObjectModelTransformerToJava.java
index 52072fa..ab57b7d 100644
--- a/eugene/src/main/java/org/nuiton/eugene/java/ObjectModelTransformerToJava.java
+++ b/eugene/src/main/java/org/nuiton/eugene/java/ObjectModelTransformerToJava.java
@@ -25,11 +25,15 @@ package org.nuiton.eugene.java;
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.nuiton.eugene.EugeneTagValues;
+import org.nuiton.eugene.EugeneCoreTagValues;
 import org.nuiton.eugene.GeneratorUtil;
 import org.nuiton.eugene.Template;
 import org.nuiton.eugene.java.extension.ImportsManager;
 import org.nuiton.eugene.java.extension.ObjectModelAnnotation;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeMetadatasProviderManagerExtension;
+import org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadatasProviderManagerExtension;
+import org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider;
 import org.nuiton.eugene.models.object.ObjectModel;
 import org.nuiton.eugene.models.object.ObjectModelAttribute;
 import org.nuiton.eugene.models.object.ObjectModelClass;
@@ -45,10 +49,6 @@ import org.nuiton.eugene.models.object.ObjectModelPackage;
 import org.nuiton.eugene.models.object.ObjectModelParameter;
 import org.nuiton.eugene.models.object.ObjectModelTransformer;
 import org.nuiton.eugene.models.object.ObjectModelType;
-import org.nuiton.eugene.models.stereotype.StereotypeDefinitionProvider;
-import org.nuiton.eugene.models.stereotype.StereotypeDefinitionProviderManagerExtension;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProvider;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProviderManagerExtension;
 import org.nuiton.i18n.I18n;
 
 import javax.annotation.Generated;
@@ -78,11 +78,11 @@ public abstract class ObjectModelTransformerToJava extends ObjectModelTransforme
 
     private String constantPrefix;
 
-    private EugeneTagValues eugeneTagValues;
+    private EugeneCoreTagValues eugeneTagValues;
 
-    public EugeneTagValues getEugeneTagValues() {
+    public EugeneCoreTagValues getEugeneTagValues() {
         if (eugeneTagValues == null) {
-            eugeneTagValues = getTagValueDefinitionProvider(EugeneTagValues.class);
+            eugeneTagValues = getTagValueMetadatasProvider(EugeneCoreTagValues.class);
         }
         return eugeneTagValues;
     }
@@ -845,7 +845,7 @@ public abstract class ObjectModelTransformerToJava extends ObjectModelTransforme
      *
      * If found, add all literals on {@code output} model as constants.
      *
-     * You can add a {@link EugeneTagValues#TAG_CONSTANT_PREFIX} to your
+     * You can add a {@link EugeneCoreTagValues.Store#constantPrefix} to your
      * enumeration to prefix constant names.
      *
      * @param input  the input model
@@ -916,7 +916,7 @@ public abstract class ObjectModelTransformerToJava extends ObjectModelTransforme
 
     /**
      * Used to initialize constant prefix depends on model tagvalue {@link
-     * EugeneTagValues#TAG_CONSTANT_PREFIX}. If no tagvalue found, the default
+     * EugeneCoreTagValues.Store#constantPrefix}. If no tagvalue found, the default
      * value will be an empty prefix.
      */
     public void initConstantPrefixFromModel() {
@@ -1017,18 +1017,18 @@ public abstract class ObjectModelTransformerToJava extends ObjectModelTransforme
         return isInClassPath(packageName + "." + className);
     }
 
-    protected <T extends TagValueDefinitionProvider> T getTagValueDefinitionProvider(Class<T> providerType) {
+    protected <T extends TagValueMetadatasProvider> T getTagValueMetadatasProvider(Class<T> providerType) {
 
-        TagValueDefinitionProviderManagerExtension extension = model.getExtension(
-                TagValueDefinitionProviderManagerExtension.OBJECTMODEL_EXTENSION, TagValueDefinitionProviderManagerExtension.class);
-        return extension.getTagValueDefinitionProvider(providerType);
+        TagValueMetadatasProviderManagerExtension extension = model.getExtension(
+                TagValueMetadatasProviderManagerExtension.OBJECTMODEL_EXTENSION, TagValueMetadatasProviderManagerExtension.class);
+        return extension.getProvider(providerType);
     }
 
-    protected <T extends StereotypeDefinitionProvider> T getStereotypeDefinitionProvider(Class<T> providerType) {
+    protected <T extends StereotypeMetadatasProvider> T getStereotypeMetadatasProvider(Class<T> providerType) {
 
-        StereotypeDefinitionProviderManagerExtension extension = model.getExtension(
-                StereotypeDefinitionProviderManagerExtension.OBJECTMODEL_EXTENSION, StereotypeDefinitionProviderManagerExtension.class);
-        return extension.getStereotypeDefinitionProvider(providerType);
+        StereotypeMetadatasProviderManagerExtension extension = model.getExtension(
+                StereotypeMetadatasProviderManagerExtension.OBJECTMODEL_EXTENSION, StereotypeMetadatasProviderManagerExtension.class);
+        return extension.getProvider(providerType);
     }
 
 }
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/Model.java b/eugene/src/main/java/org/nuiton/eugene/models/Model.java
index ea30ba0..7e3fe2d 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/Model.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/Model.java
@@ -23,13 +23,15 @@
 
 package org.nuiton.eugene.models;
 
+import org.nuiton.eugene.models.extension.stereotype.WithStereotypes;
+import org.nuiton.eugene.models.extension.tagvalue.WithTagValues;
 import org.nuiton.eugene.models.stereotype.StereotypeAble;
 import org.nuiton.eugene.models.tagvalue.TagValueAble;
 
 /**
  * Model.
  */
-public interface Model extends TagValueAble, StereotypeAble {
+public interface Model extends TagValueAble, StereotypeAble, WithTagValues, WithStereotypes {
 
     /**
      * Plexus role name
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/InvalidStereotypeSyntaxException.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/InvalidStereotypeSyntaxException.java
similarity index 93%
copy from eugene/src/main/java/org/nuiton/eugene/models/stereotype/InvalidStereotypeSyntaxException.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/InvalidStereotypeSyntaxException.java
index f751d4e..7aa8ef8 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/InvalidStereotypeSyntaxException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/InvalidStereotypeSyntaxException.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.stereotype;
+package org.nuiton.eugene.models.extension.stereotype;
 
 /*
  * #%L
@@ -26,7 +26,7 @@ package org.nuiton.eugene.models.stereotype;
  * Created on 5/1/14.
  *
  * @author Tony Chemit - chemit@codelutin.com
- * @since 2.9
+ * @since 3.0
  */
 public class InvalidStereotypeSyntaxException extends Exception {
 
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MismatchStereotypeTargetException.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/MismatchStereotypeTargetException.java
similarity index 93%
copy from eugene/src/main/java/org/nuiton/eugene/models/stereotype/MismatchStereotypeTargetException.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/MismatchStereotypeTargetException.java
index f62b9bc..4323580 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MismatchStereotypeTargetException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/MismatchStereotypeTargetException.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.stereotype;
+package org.nuiton.eugene.models.extension.stereotype;
 
 /*
  * #%L
@@ -26,7 +26,7 @@ package org.nuiton.eugene.models.stereotype;
  * Created on 4/27/14.
  *
  * @author Tony Chemit - chemit@codelutin.com
- * @since 2.9
+ * @since 3.0
  */
 public class MismatchStereotypeTargetException extends Exception {
 
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MissingStereoTypeException.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/MissingStereoTypeException.java
similarity index 61%
copy from eugene/src/main/java/org/nuiton/eugene/models/stereotype/MissingStereoTypeException.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/MissingStereoTypeException.java
index 1b29142..fad8714 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MissingStereoTypeException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/MissingStereoTypeException.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.stereotype;
+package org.nuiton.eugene.models.extension.stereotype;
 
 /*
  * #%L
@@ -26,6 +26,7 @@ import com.google.common.base.Joiner;
 import org.nuiton.eugene.models.object.ObjectModelClass;
 import org.nuiton.eugene.models.object.ObjectModelPackage;
 
+import java.util.LinkedHashSet;
 import java.util.Set;
 
 /**
@@ -49,7 +50,7 @@ public class MissingStereoTypeException extends RuntimeException {
     public MissingStereoTypeException(String stereoTypeName, String prefixMessage, ObjectModelPackage aPackage, ObjectModelClass aClass) {
         this.stereoTypeName = stereoTypeName;
         this.prefixMessage = prefixMessage;
-        this.stack = Stereotypes.getUsageStack(stereoTypeName, aPackage, aClass);
+        this.stack = getUsageStack(stereoTypeName, aPackage, aClass);
     }
 
     @Override
@@ -62,4 +63,35 @@ public class MissingStereoTypeException extends RuntimeException {
 
     }
 
+    /**
+     * Build the stack of usage of the given stereoType.
+     *
+     * Order of usage is : model, packages (from root to final package), then class.
+     *
+     * @param stereoTypeName
+     * @param aPackage
+     * @param aClass
+     * @return the orderer set of stack usage.
+     */
+    public LinkedHashSet<String> getUsageStack(String stereoTypeName, ObjectModelPackage aPackage, ObjectModelClass aClass) {
+        String suffix = ".stereotype=" + stereoTypeName;
+        LinkedHashSet<String> stack = new LinkedHashSet<>();
+
+        stack.add("model" + suffix);
+
+        addPackageStereoTypes(aPackage, suffix, stack);
+        stack.add(aClass.getQualifiedName() + ".class" + suffix);
+
+        return stack;
+    }
+
+    protected void addPackageStereoTypes(ObjectModelPackage aPackage, String suffix, Set<String> stack) {
+
+        if (aPackage.getParentPackage() != null) {
+            addPackageStereoTypes(aPackage.getParentPackage(), suffix, stack);
+        }
+        stack.add("package." + aPackage.getName() + suffix);
+
+    }
+
 }
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeMetadata.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeMetadata.java
new file mode 100644
index 0000000..cc15931
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeMetadata.java
@@ -0,0 +1,40 @@
+package org.nuiton.eugene.models.extension.stereotype;
+
+import java.util.Set;
+
+/**
+ * To define a stereotype metadata.
+ *
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public interface StereotypeMetadata {
+
+    /**
+     * Get the stereotype name.
+     *
+     * @return the stereotype name
+     */
+    String getName();
+
+    /**
+     * Define the types of object model api which can use this tag value.
+     *
+     * @return the set of target object model element which can accept the tag value.
+     */
+    Set<Class<?>> getTargets();
+
+    /**
+     * Get the i18n documentation key.
+     *
+     * @return the i18n documentation key
+     */
+    String getI18nDocumentationKey();
+
+    /**
+     * @return {@code true} if this stereotype is deprecated
+     */
+    boolean isDeprecated();
+
+}
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeMetadatasProviderManagerExtension.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeMetadatasProviderManagerExtension.java
new file mode 100644
index 0000000..314cc4b
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeMetadatasProviderManagerExtension.java
@@ -0,0 +1,42 @@
+package org.nuiton.eugene.models.extension.stereotype;
+
+import com.google.common.base.Preconditions;
+import org.nuiton.eugene.models.extension.stereotype.provider.AggregateStereotypeMetadatasProvider;
+import org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public class StereotypeMetadatasProviderManagerExtension {
+
+    /**
+     * Extension static used to identify this extension in ObjectModel.
+     */
+    public static final String OBJECTMODEL_EXTENSION = "stereotypeMetadatasProvider";
+
+    protected AggregateStereotypeMetadatasProvider prodiver;
+
+    public void setProdiver(AggregateStereotypeMetadatasProvider prodiver) {
+        this.prodiver = prodiver;
+    }
+
+    public <T extends StereotypeMetadatasProvider> T getProvider(Class<T> providerType) {
+
+        Preconditions.checkState(prodiver != null, "No prodiver assigned");
+
+        StereotypeMetadatasProvider result = null;
+        for (StereotypeMetadatasProvider stereotypeDefinitionProvider : prodiver) {
+            if (providerType.equals(stereotypeDefinitionProvider.getClass())) {
+                result = stereotypeDefinitionProvider;
+                break;
+            }
+        }
+
+        Preconditions.checkState(result != null, "No prodiver of this type: " + providerType.getName());
+        return (T) result;
+
+    }
+
+}
\ No newline at end of file
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeNotFoundException.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeNotFoundException.java
similarity index 93%
copy from eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeNotFoundException.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeNotFoundException.java
index f5d9a89..d97384e 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeNotFoundException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeNotFoundException.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.stereotype;
+package org.nuiton.eugene.models.extension.stereotype;
 
 /*
  * #%L
@@ -26,7 +26,7 @@ package org.nuiton.eugene.models.stereotype;
  * Created on 4/27/14.
  *
  * @author Tony Chemit - chemit@codelutin.com
- * @since 2.9
+ * @since 3.0
  */
 public class StereotypeNotFoundException extends Exception {
 
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/Stereotypes.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeUtil.java
similarity index 62%
copy from eugene/src/main/java/org/nuiton/eugene/models/stereotype/Stereotypes.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeUtil.java
index 2bc9553..f520ab7 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/Stereotypes.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/StereotypeUtil.java
@@ -1,44 +1,20 @@
-package org.nuiton.eugene.models.stereotype;
-
-/*
- * #%L
- * EUGene :: EUGene
- * %%
- * Copyright (C) 2004 - 2014 CodeLutin
- * %%
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Lesser Public License for more details.
- * 
- * You should have received a copy of the GNU General Lesser Public
- * License along with this program.  If not, see
- * <http://www.gnu.org/licenses/lgpl-3.0.html>.
- * #L%
- */
+package org.nuiton.eugene.models.extension.stereotype;
 
 import com.google.common.collect.ImmutableSet;
-import org.nuiton.eugene.models.object.ObjectModelClass;
 import org.nuiton.eugene.models.object.ObjectModelElement;
 import org.nuiton.eugene.models.object.ObjectModelPackage;
 
-import java.util.LinkedHashSet;
 import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 /**
- * Created on 5/1/14.
+ * Created on 24/09/16.
  *
  * @author Tony Chemit - chemit@codelutin.com
- * @since 2.9
+ * @since 3.0
  */
-public class Stereotypes {
+public class StereotypeUtil {
 
     protected static final Pattern PACKAGE_STEREOTYPE_PATTERN = Pattern
             .compile("^package\\.((?:[_a-zA-Z0-9]+\\.)+)?(?:(stereotype)?)$");
@@ -68,46 +44,7 @@ public class Stereotypes {
         return ImmutableSet.<String>builder().add(split).build();
     }
 
-    /**
-     * Seek for a stereotype amoung elements given using these rules:
-     * <ul>
-     * <li>Look into {@code elements} and return the first element with this stereotype found.</li>
-     * <li>If not found, Look into {@code elements} declaringElement (for each
-     * element that is a {@link ObjectModelElement} and return the first not empty tag
-     * element with this stereotype found.</li>
-     * </ul>
-     * <strong>Note:</strong> Order of {@code elements} is important, better then to
-     * always starts from specialized to more general level (for example from attribute,
-     * to classifier or model).
-     *
-     * @param stereotypeName tag name to find
-     * @param elements       not null elements to test
-     * @return {@code true} if found stereotype, {@code false} otherwise
-     * @since 2.12
-     */
-    public static boolean findStereotype(String stereotypeName, StereotypeAble... elements) {
-
-        boolean result = findDirectStereotype(stereotypeName, elements);
-
-        if (result) {
-            return result;
-        }
-
-        for (StereotypeAble element : elements) {
-            if (element instanceof ObjectModelElement) {
-                // try in declaring element
-                ObjectModelElement declaringElement = ((ObjectModelElement) element).getDeclaringElement();
-                if (declaringElement != null) {
-                    boolean value = findStereotype(stereotypeName, declaringElement);
-                    if (value) {
-                        return value;
-                    }
-                }
-            }
-        }
-        return false;
 
-    }
 
     /**
      * Seek for a stereotype amoung elements given using these rules:
@@ -121,16 +58,16 @@ public class Stereotypes {
      * @param stereotypeName stereotype to find
      * @param elements       not null elements to test
      * @return {@code true} if found stereotype, {@code false} otherwise
-     * @since 2.12
+     * @since 3.0
      */
-    public static boolean findDirectStereotype(String stereotypeName, StereotypeAble... elements) {
+    public static boolean findDirectStereotype(StereotypeMetadata stereotypeName, WithStereotypes... elements) {
         boolean value = false;
-        for (StereotypeAble element : elements) {
+        for (WithStereotypes element : elements) {
             if (element != null) {
                 if (element instanceof ObjectModelPackage) {
                     value = findDirectStereotype(stereotypeName, (ObjectModelPackage) element);
                 } else {
-                    value = element.hasStereotype(stereotypeName);
+                    value = element.hasStereotype(stereotypeName.getName());
                 }
                 if (value) {
                     break;
@@ -143,42 +80,52 @@ public class Stereotypes {
     }
 
     /**
-     * Build the stack of usage of the given stereoType.
-     *
-     * Order of usage is : model, packages (from root to final package), then class.
+     * Seek for a stereotype amoung elements given using these rules:
+     * <ul>
+     * <li>Look into {@code elements} and return the first element with this stereotype found.</li>
+     * <li>If not found, Look into {@code elements} declaringElement (for each
+     * element that is a {@link ObjectModelElement} and return the first not empty tag
+     * element with this stereotype found.</li>
+     * </ul>
+     * <strong>Note:</strong> Order of {@code elements} is important, better then to
+     * always starts from specialized to more general level (for example from attribute,
+     * to classifier or model).
      *
-     * @param stereoTypeName
-     * @param aPackage
-     * @param aClass
-     * @return the orderer set of stack usage.
+     * @param stereotypeName stereotype to find
+     * @param elements       not null elements to test
+     * @return {@code true} if found stereotype, {@code false} otherwise
+     * @since 3.0
      */
-    public static LinkedHashSet<String> getUsageStack(String stereoTypeName, ObjectModelPackage aPackage, ObjectModelClass aClass) {
-        String suffix = ".stereotype=" + stereoTypeName ;
-        LinkedHashSet<String> stack = new LinkedHashSet<>();
-
-        stack.add("model" + suffix);
+    public static boolean findStereotype(StereotypeMetadata stereotypeName, WithStereotypes... elements) {
 
-        addPackageStereoTypes(aPackage, suffix, stack);
-        stack.add(aClass.getQualifiedName() + ".class" + suffix);
-
-        return stack;
-    }
+        boolean result = findDirectStereotype(stereotypeName, elements);
 
-    protected static void addPackageStereoTypes(ObjectModelPackage aPackage, String suffix, Set<String> stack) {
+        if (result) {
+            return result;
+        }
 
-        if (aPackage.getParentPackage() != null) {
-            addPackageStereoTypes(aPackage.getParentPackage(), suffix, stack);
+        for (WithStereotypes element : elements) {
+            if (element instanceof ObjectModelElement) {
+                // try in declaring element
+                ObjectModelElement declaringElement = ((ObjectModelElement) element).getDeclaringElement();
+                if (declaringElement != null) {
+                    boolean value = findStereotype(stereotypeName, declaringElement);
+                    if (value) {
+                        return value;
+                    }
+                }
+            }
         }
-        stack.add("package." + aPackage.getName() + suffix);
+        return false;
 
     }
 
-    protected static boolean findDirectStereotype(String stereotypeName, ObjectModelPackage element) {
-        boolean withStereotype = element.hasStereotype(stereotypeName);
+    protected static boolean findDirectStereotype(StereotypeMetadata stereotypeName, ObjectModelPackage element) {
+        boolean withStereotype = element.hasStereotype(stereotypeName.getName());
         if (!withStereotype && element.getParentPackage() != null) {
             withStereotype = findDirectStereotype(stereotypeName, element.getParentPackage());
         }
         return withStereotype;
-
     }
+
 }
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeAble.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/WithStereotypes.java
similarity index 92%
copy from eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeAble.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/WithStereotypes.java
index c9b4744..77b2f24 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeAble.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/WithStereotypes.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.stereotype;
+package org.nuiton.eugene.models.extension.stereotype;
 
 /*
  * #%L
@@ -30,7 +30,7 @@ import java.util.Set;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
-public interface StereotypeAble {
+public interface WithStereotypes {
 
     /**
      * Returns the stereotypes names associated with this element.
@@ -53,4 +53,6 @@ public interface StereotypeAble {
      * @param stereotype stereotype to add
      */
     void addStereotype(String stereotype);
+
+    void removeStereotype(String stereotype);
 }
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/provider/AggregateStereotypeMetadatasProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/provider/AggregateStereotypeMetadatasProvider.java
new file mode 100644
index 0000000..76e3602
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/provider/AggregateStereotypeMetadatasProvider.java
@@ -0,0 +1,113 @@
+package org.nuiton.eugene.models.extension.stereotype.provider;
+
+/*
+ * #%L
+ * EUGene :: EUGene
+ * %%
+ * Copyright (C) 2004 - 2014 CodeLutin
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Lesser Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Lesser Public
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/lgpl-3.0.html>.
+ * #L%
+ */
+
+import com.google.common.base.Optional;
+import com.google.common.collect.ImmutableSet;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.nuiton.eugene.models.extension.stereotype.MismatchStereotypeTargetException;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeMetadata;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeNotFoundException;
+
+import java.util.Iterator;
+import java.util.ServiceLoader;
+
+/**
+ * Created on 4/27/14.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ * @since 2.9
+ */
+public class AggregateStereotypeMetadatasProvider implements StereotypeMetadatasProvider, Iterable<StereotypeMetadatasProvider> {
+
+    /** Logger. */
+    private static final Log log = LogFactory.getLog(AggregateStereotypeMetadatasProvider.class);
+
+    protected final Iterable<StereotypeMetadatasProvider> providers;
+
+    /**
+     * Obtain a new provider of stereotype definitions.
+     *
+     * @param loader the classloader to use (if none given will use the one of the current thread)
+     */
+    public AggregateStereotypeMetadatasProvider(ClassLoader loader) {
+        if (loader == null) {
+
+            // use the current thread loader
+            loader = Thread.currentThread().getContextClassLoader();
+        }
+        this.providers = ServiceLoader.load(StereotypeMetadatasProvider.class, loader);
+
+    }
+
+    /**
+     * Obtain a new provider of stereotype definitions.
+     *
+     * @param providers the list of providers to use in the factory
+     */
+    public AggregateStereotypeMetadatasProvider(Iterable<StereotypeMetadatasProvider> providers) {
+        this.providers = providers;
+    }
+
+    @Override
+    public Iterator<StereotypeMetadatasProvider> iterator() {
+        return providers.iterator();
+    }
+
+    @Override
+    public ImmutableSet<StereotypeMetadata> getStereotypes() {
+        ImmutableSet.Builder<StereotypeMetadata> builder = ImmutableSet.builder();
+        for (StereotypeMetadatasProvider tagValuesMetadatasProvider : providers) {
+            builder.addAll(tagValuesMetadatasProvider.getStereotypes());
+        }
+
+        return builder.build();
+    }
+
+    @Override
+    public void validate(String stereotypeName, Class<?> type) throws StereotypeNotFoundException, MismatchStereotypeTargetException {
+        for (StereotypeMetadatasProvider provider : providers) {
+            try {
+                provider.validate(stereotypeName, type);
+                return;
+            } catch (StereotypeNotFoundException e) {
+                // do nothing here
+            }
+        }
+        throw new StereotypeNotFoundException();
+
+    }
+
+    @Override
+    public Optional<StereotypeMetadata> getStereotype(String stereotypeName) {
+        for (StereotypeMetadatasProvider provider : providers) {
+            Optional<StereotypeMetadata> result = provider.getStereotype(stereotypeName);
+            if (result.isPresent()) {
+                return result;
+            }
+        }
+        return Optional.absent();
+    }
+
+}
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/provider/DefaultStereotypeMetadatasProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/provider/DefaultStereotypeMetadatasProvider.java
new file mode 100644
index 0000000..e483b38
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/provider/DefaultStereotypeMetadatasProvider.java
@@ -0,0 +1,62 @@
+package org.nuiton.eugene.models.extension.stereotype.provider;
+
+import com.google.common.base.Optional;
+import com.google.common.collect.ImmutableSet;
+import org.nuiton.eugene.models.extension.stereotype.MismatchStereotypeTargetException;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeMetadata;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeNotFoundException;
+
+import java.util.Set;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public abstract class DefaultStereotypeMetadatasProvider implements StereotypeMetadatasProvider {
+
+    protected Set<StereotypeMetadata> stereotypes;
+
+    protected DefaultStereotypeMetadatasProvider(StereotypeMetadata... stereotypes) {
+        this.stereotypes = ImmutableSet.copyOf(stereotypes);
+    }
+
+    @Override
+    public Set<StereotypeMetadata> getStereotypes() {
+        return stereotypes;
+    }
+
+    @Override
+    public void validate(String stereotypeName, Class<?> type) throws StereotypeNotFoundException, MismatchStereotypeTargetException {
+        Optional<StereotypeMetadata> def = getStereotype(stereotypeName);
+
+        if (!def.isPresent()) {
+            throw new StereotypeNotFoundException();
+        }
+
+        boolean valid = false;
+
+        for (Class<?> target : def.get().getTargets()) {
+            if (target.equals(type) || target.isAssignableFrom(type)) {
+
+                // found one accepting target
+                valid = true;
+                break;
+            }
+        }
+        if (!valid) {
+            throw new MismatchStereotypeTargetException();
+        }
+    }
+
+    @Override
+    public Optional<StereotypeMetadata> getStereotype(String stereotypeName) {
+        for (StereotypeMetadata metadata : stereotypes) {
+            if (stereotypeName.equals(metadata.getName())) {
+                return Optional.of(metadata);
+            }
+        }
+        return Optional.absent();
+    }
+
+}
\ No newline at end of file
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/provider/StereotypeMetadatasProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/provider/StereotypeMetadatasProvider.java
new file mode 100644
index 0000000..4e3fdf4
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/stereotype/provider/StereotypeMetadatasProvider.java
@@ -0,0 +1,23 @@
+package org.nuiton.eugene.models.extension.stereotype.provider;
+
+import com.google.common.base.Optional;
+import org.nuiton.eugene.models.extension.stereotype.MismatchStereotypeTargetException;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeMetadata;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeNotFoundException;
+
+import java.util.Set;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public interface StereotypeMetadatasProvider {
+
+    Set<StereotypeMetadata> getStereotypes();
+
+    void validate(String stereotypeName, Class<?> type) throws StereotypeNotFoundException, MismatchStereotypeTargetException;
+
+    Optional<StereotypeMetadata> getStereotype(String stereotypeName);
+
+}
\ No newline at end of file
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/InvalidTagValueSyntaxException.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/InvalidTagValueSyntaxException.java
similarity index 94%
copy from eugene/src/main/java/org/nuiton/eugene/models/tagvalue/InvalidTagValueSyntaxException.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/InvalidTagValueSyntaxException.java
index 7585d91..d5aee3d 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/InvalidTagValueSyntaxException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/InvalidTagValueSyntaxException.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.tagvalue;
+package org.nuiton.eugene.models.extension.tagvalue;
 
 /*
  * #%L
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MismatchTagValueTargetException.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/MismatchTagValueTargetException.java
similarity index 94%
copy from eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MismatchTagValueTargetException.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/MismatchTagValueTargetException.java
index 9c2570f..b84077c 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MismatchTagValueTargetException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/MismatchTagValueTargetException.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.tagvalue;
+package org.nuiton.eugene.models.extension.tagvalue;
 
 /*
  * #%L
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MissingTagValueException.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/MissingTagValueException.java
similarity index 53%
copy from eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MissingTagValueException.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/MissingTagValueException.java
index fbf0369..c3275b8 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MissingTagValueException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/MissingTagValueException.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.tagvalue;
+package org.nuiton.eugene.models.extension.tagvalue;
 
 /*
  * #%L
@@ -26,6 +26,7 @@ import com.google.common.base.Joiner;
 import org.nuiton.eugene.models.object.ObjectModelClass;
 import org.nuiton.eugene.models.object.ObjectModelPackage;
 
+import java.util.LinkedHashSet;
 import java.util.Set;
 
 /**
@@ -52,16 +53,48 @@ public class MissingTagValueException extends RuntimeException {
         this.tagValueName = tagValueName;
         this.tagValueValue = tagValueValue;
         this.prefixMessage = prefixMessage;
-        this.stack = TagValues.getUsageStack(tagValueName, tagValueValue, aPackage, aClass);
+        this.stack = getUsageStack(tagValueName, tagValueValue, aPackage, aClass);
     }
 
     @Override
     public String toString() {
 
         return "\n\n" + prefixMessage
-               + "\n=========================================================================================="
-               + "\n" + Joiner.on("\n").join(stack)
-               + "\n==========================================================================================";
+                + "\n=========================================================================================="
+                + "\n" + Joiner.on("\n").join(stack)
+                + "\n==========================================================================================";
+
+    }
+
+    /**
+     * Build the stack of usage of the given tag value.
+     *
+     * Order of usage is : model, packages (from root to final package), then class.
+     *
+     * @param tagValueName
+     * @param tagValueValue
+     * @param aPackage
+     * @param aClass
+     * @return the orderer set of stack usage.
+     */
+    protected LinkedHashSet<String> getUsageStack(String tagValueName, String tagValueValue, ObjectModelPackage aPackage, ObjectModelClass aClass) {
+        String suffix = ".tagvalue." + tagValueName + "=" + tagValueValue;
+        LinkedHashSet<String> stack = new LinkedHashSet<>();
+
+        stack.add("model" + suffix);
+
+        addPackageTagValue(aPackage, suffix, stack);
+        stack.add(aClass.getQualifiedName() + ".class" + suffix);
+
+        return stack;
+    }
+
+    protected void addPackageTagValue(ObjectModelPackage aPackage, String suffix, Set<String> stack) {
+
+        if (aPackage.getParentPackage() != null) {
+            addPackageTagValue(aPackage.getParentPackage(), suffix, stack);
+        }
+        stack.add("package." + aPackage.getName() + suffix);
 
     }
 
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueMetadata.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueMetadata.java
new file mode 100644
index 0000000..6d0a86b
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueMetadata.java
@@ -0,0 +1,51 @@
+package org.nuiton.eugene.models.extension.tagvalue;
+
+import org.nuiton.eugene.models.extension.tagvalue.matcher.TagValueDefinitionMatcher;
+
+import java.util.Set;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public interface TagValueMetadata {
+
+    /**
+     * Get the stereotype name.
+     *
+     * @return the stereotype name
+     */
+    String getName();
+
+    /**
+     * Define the types of object model api which can use this tag value.
+     *
+     * @return the set of target object model element which can accept the tag value.
+     */
+    Set<Class<?>> getTargets();
+
+    /**
+     * Get the i18n documentation key.
+     *
+     * @return the i18n documentation key
+     */
+    String getI18nDocumentationKey();
+
+    /**
+     * @return default value for this tag value
+     */
+    String getDefaultValue();
+
+    /**
+     * @return {@code true} if this stereotype is deprecated
+     */
+    boolean isDeprecated();
+
+    /**
+     * @return the tag value type
+     */
+    Class<?> getType();
+
+    Class<? extends TagValueDefinitionMatcher> getMatcherClass();
+}
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueMetadatasProviderManagerExtension.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueMetadatasProviderManagerExtension.java
new file mode 100644
index 0000000..e831420
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueMetadatasProviderManagerExtension.java
@@ -0,0 +1,42 @@
+package org.nuiton.eugene.models.extension.tagvalue;
+
+import com.google.common.base.Preconditions;
+import org.nuiton.eugene.models.extension.tagvalue.provider.AggregateTagValueMetadatasProvider;
+import org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public class TagValueMetadatasProviderManagerExtension {
+
+    /**
+     * Extension static used to identify this extension in ObjectModel.
+     */
+    public static final String OBJECTMODEL_EXTENSION = "tagValueMetadatasProvider";
+
+    protected AggregateTagValueMetadatasProvider prodiver;
+
+    public void setProdiver(AggregateTagValueMetadatasProvider prodiver) {
+        this.prodiver = prodiver;
+    }
+
+    public <T extends TagValueMetadatasProvider> T getProvider(Class<T> providerType) {
+
+        Preconditions.checkState(prodiver != null, "No prodiver assigned");
+
+        TagValueMetadatasProvider result = null;
+        for (TagValueMetadatasProvider stereotypeDefinitionProvider : prodiver) {
+            if (providerType.equals(stereotypeDefinitionProvider.getClass())) {
+                result = stereotypeDefinitionProvider;
+                break;
+            }
+        }
+
+        Preconditions.checkState(result != null, "No prodiver of this type: " + providerType.getName());
+        return (T) result;
+
+    }
+
+}
\ No newline at end of file
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueNotFoundException.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueNotFoundException.java
similarity index 94%
copy from eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueNotFoundException.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueNotFoundException.java
index 118267f..bff9d2d 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueNotFoundException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueNotFoundException.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.tagvalue;
+package org.nuiton.eugene.models.extension.tagvalue;
 
 /*
  * #%L
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueUtil.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueUtil.java
new file mode 100644
index 0000000..9a40b42
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/TagValueUtil.java
@@ -0,0 +1,193 @@
+package org.nuiton.eugene.models.extension.tagvalue;
+
+import org.apache.commons.lang3.StringUtils;
+import org.nuiton.eugene.models.object.ObjectModelElement;
+import org.nuiton.eugene.models.object.ObjectModelPackage;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public class TagValueUtil {
+
+    /**
+     * Pattern to define tag values authorized at classifier level in the model
+     * properties file.
+     *
+     * L'expression réguliere match les chaines de type
+     * <package.ClassName>.<class|attribute|operation>.[name].<stereotype|tagvalue>.[tag]
+     * fr.isisfish.entities.Population.class.stereotype=entity
+     * fr.isisfish.entities.Population.class.tagvalue.persistenceType=flatfile
+     * fr.isisfish.entities.Population.attribute.name.stereotype=...
+     * fr.isisfish.entities.Population.attribute.name.tagvalue.pk=topiaId
+     * fr.isisfish.entities.Population.operation.getRegion.stereotype=...
+     * fr.isisfish.entities.Population.operation.getRegion.tagvalue.pk=...
+     */
+    protected static final Pattern TAG_VALUE_PATTERN =
+            Pattern.compile("^((?:[_a-zA-Z0-9]+\\.)+(?:_?[A-Z][_a-zA-Z0-9]*\\.)+)(?:(class|attribute|operation))\\.(?:([_a-zA-Z0-9]+)\\.)?(?:(tagvalue|tagValue)?)\\.((?:[_a-zA-Z0-9]+)+(?:\\.?[_a-zA-Z0-9]+)*)?$");
+
+    /**
+     * Pattern to define tag values authorized at model level in the model
+     * properties file.
+     */
+    protected static final Pattern MODEL_TAG_VALUE_PATTERN = Pattern.compile(
+            "^model\\.(?:(tagvalue|tagValue)?)\\.((?:[_a-zA-Z0-9]+)+(?:\\.?[_a-zA-Z0-9]+)*)$");
+
+    /**
+     * Pattern to define tag values authorized at model level in the model
+     * properties file.
+     */
+    protected static final Pattern PACKAGE_TAG_VALUE_PATTERN = Pattern.compile(
+            "^package\\.((?:[_a-zA-Z0-9]+\\.)+)(?:(tagvalue|tagValue)?)\\.((?:[_a-zA-Z0-9]+)+(?:\\.?[_a-zA-Z0-9]+)*)$");
+
+    public static Matcher getModelMatcher(String key) throws InvalidTagValueSyntaxException {
+        Matcher matcher = MODEL_TAG_VALUE_PATTERN.matcher(key);
+        if (!matcher.find()) {
+            throw new InvalidTagValueSyntaxException();
+        }
+        return matcher;
+    }
+
+    public static Matcher getPackageMatcher(String key) throws InvalidTagValueSyntaxException {
+        Matcher matcher = PACKAGE_TAG_VALUE_PATTERN.matcher(key);
+        if (!matcher.find()) {
+            throw new InvalidTagValueSyntaxException();
+        }
+        return matcher;
+    }
+
+    public static Matcher getMatcher(String key) throws InvalidTagValueSyntaxException {
+        Matcher matcher = TAG_VALUE_PATTERN.matcher(key);
+        if (!matcher.find()) {
+            throw new InvalidTagValueSyntaxException();
+        }
+        return matcher;
+    }
+
+    /**
+     * Seek for a tag value amoung elements given using these rules:
+     * <ul>
+     * <li>Look into {@code elements} and return the first not empty tag value found.</li>
+     * <li>If not found, Look into {@code elements} declaringElement (for each
+     * element that is a {@link ObjectModelElement} and return the first not empty tag
+     * value found.</li>
+     * <li>If not found return {@code defaultValue}</li>
+     * </ul>
+     * <strong>Note:</strong> Order of {@code elements} is important, better then to
+     * always starts from specialized to more general level (for example from attribute,
+     * to classifier or model).
+     *
+     * @param tagName  tag name to find
+     * @param elements not null elements to test
+     * @return found tag value or {@code null} if not found
+     * @since 3.0
+     */
+    public static String findTagValue(TagValueMetadata tagName, WithTagValues... elements) {
+        String result = findDirectTagValue(tagName, elements);
+
+        if (result != null) {
+            return result;
+        }
+
+        for (WithTagValues element : elements) {
+            if (element instanceof ObjectModelElement) {
+                // try in declaring element
+                ObjectModelElement declaringElement = ((ObjectModelElement) element).getDeclaringElement();
+                if (declaringElement != null) {
+                    String value = findNotEmptyTagValue(tagName, declaringElement);
+                    if (value != null) {
+                        return value;
+                    }
+                }
+            }
+        }
+        return tagName.getDefaultValue();
+    }
+
+    public static boolean findBooleanTagValue(TagValueMetadata tagName, WithTagValues... elements) {
+        String value = findTagValue(tagName, elements);
+        return value != null && "true".equalsIgnoreCase(value);
+    }
+
+    /**
+     * Seek for a Boolean tag value.
+     *
+     * Will first the tag value using the method {@link #findTagValue(TagValueMetadata, WithTagValues...)}.
+     *
+     * If not found, return {@code null}, otherwise return boolean value (case is ignored).
+     *
+     * <strong>Note:</strong> Order of {@code elements} is important, better then to
+     * always starts from specialized to more general level (for example from attribute,
+     * to classifier or model).
+     *
+     * @param tagName  tag name to find
+     * @param elements not null elements to test
+     * @return found boolean tag value or {@code null} if tag value not found.
+     * @since 3.0
+     */
+    public static Boolean findNullableBooleanTagValue(TagValueMetadata tagName, WithTagValues... elements) {
+        String value = findTagValue(tagName, elements);
+        return value == null ? null : "true".equalsIgnoreCase(value);
+    }
+
+    /**
+     * Seek for a tag value amoung elements given using these rules:
+     * <ul>
+     * <li>Look into {@code elements} and return the first not empty tag value found.</li>
+     * <li>If not found return {@code defaultValue}</li>
+     * </ul>
+     * <strong>Note:</strong> Order of {@code elements} is important, better then to
+     * always starts from specialized to more general level (for example from attribute,
+     * to classifier or model).
+     *
+     * @param tagName  tag name to find
+     * @param elements not null elements to test
+     * @return found tag value or {@code null} if not found
+     * @since 3.0
+     */
+    public static String findDirectTagValue(TagValueMetadata tagName, WithTagValues... elements) {
+
+        for (WithTagValues element : elements) {
+            String value = findNotEmptyTagValue(tagName, element);
+            if (value != null) {
+                return value;
+            }
+        }
+
+        return tagName.getDefaultValue();
+    }
+
+    public static String findNotEmptyTagValue(TagValueMetadata tagName, WithTagValues element) {
+
+        String value = null;
+        if (element != null) {
+            if (element instanceof ObjectModelPackage) {
+                value = findNotEmptyTagValue(tagName, (ObjectModelPackage) element);
+            } else {
+                value = element.getTagValue(tagName.getName());
+                if (StringUtils.isEmpty(value)) {
+                    value = null;
+                }
+            }
+        }
+        return value;
+
+    }
+
+    protected static String findNotEmptyTagValue(TagValueMetadata tagName, ObjectModelPackage element) {
+
+        String value = element.getTagValue(tagName.getName());
+        if (StringUtils.isEmpty(value)) {
+            value = null;
+        }
+        if (value == null && element.getParentPackage() != null) {
+            value = findNotEmptyTagValue(tagName, element.getParentPackage());
+        }
+        return value;
+
+    }
+}
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueAble.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/WithTagValues.java
similarity index 94%
copy from eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueAble.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/WithTagValues.java
index 734e532..9e37507 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueAble.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/WithTagValues.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.tagvalue;
+package org.nuiton.eugene.models.extension.tagvalue;
 
 /*
  * #%L
@@ -30,7 +30,7 @@ import java.util.Map;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
-public interface TagValueAble {
+public interface WithTagValues {
 
     /**
      * Returns the tagValues associated with this element.
@@ -66,4 +66,7 @@ public interface TagValueAble {
      * @return a boolean indicating whether this element has a tagValue corresponding to the given name, or not.
      */
     boolean hasTagValue(String tagValue);
+
+    void removeTagValue(String tagvalue);
+
 }
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/EqualsTagValueNameMatcher.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/matcher/EqualsTagValueNameMatcher.java
similarity index 72%
copy from eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/EqualsTagValueNameMatcher.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/matcher/EqualsTagValueNameMatcher.java
index b6fe7a7..e0406f9 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/EqualsTagValueNameMatcher.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/matcher/EqualsTagValueNameMatcher.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.tagvalue.matcher;
+package org.nuiton.eugene.models.extension.tagvalue.matcher;
 
 /*
  * #%L
@@ -22,9 +22,9 @@ package org.nuiton.eugene.models.tagvalue.matcher;
  * #L%
  */
 
-import org.nuiton.eugene.models.tagvalue.TagValueDefinition;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadata;
 
-import java.util.Map;
+import java.util.Set;
 
 /**
  * Created on 4/26/14.
@@ -34,12 +34,12 @@ import java.util.Map;
  */
 public class EqualsTagValueNameMatcher extends TagValueDefinitionMatcher {
 
-    public EqualsTagValueNameMatcher(Map<String, TagValueDefinition> tagValueDefinitionMap) {
+    public EqualsTagValueNameMatcher(Set<TagValueMetadata> tagValueDefinitionMap) {
         super(tagValueDefinitionMap);
     }
 
     @Override
-    protected boolean accept(String tagValueName, Map.Entry<String, TagValueDefinition> entry) {
-        return entry.getKey().equals(tagValueName);
+    protected boolean accept(String tagValueName, TagValueMetadata entry) {
+        return entry.getName().equals(tagValueName);
     }
 }
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/StartsWithTagNameMatcher.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/matcher/StartsWithTagNameMatcher.java
similarity index 72%
copy from eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/StartsWithTagNameMatcher.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/matcher/StartsWithTagNameMatcher.java
index 24b0643..6b23fdf 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/StartsWithTagNameMatcher.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/matcher/StartsWithTagNameMatcher.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.tagvalue.matcher;
+package org.nuiton.eugene.models.extension.tagvalue.matcher;
 
 /*
  * #%L
@@ -22,9 +22,9 @@ package org.nuiton.eugene.models.tagvalue.matcher;
  * #L%
  */
 
-import org.nuiton.eugene.models.tagvalue.TagValueDefinition;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadata;
 
-import java.util.Map;
+import java.util.Set;
 
 /**
  * Created on 4/26/14.
@@ -34,13 +34,13 @@ import java.util.Map;
  */
 public class StartsWithTagNameMatcher extends TagValueDefinitionMatcher {
 
-    public StartsWithTagNameMatcher(Map<String, TagValueDefinition> tagValueDefinitionMap) {
+    public StartsWithTagNameMatcher(Set<TagValueMetadata> tagValueDefinitionMap) {
         super(tagValueDefinitionMap);
     }
 
     @Override
-    protected boolean accept(String tagValueName, Map.Entry<String, TagValueDefinition> entry) {
-        return tagValueName.startsWith(entry.getKey());
+    protected boolean accept(String tagValueName, TagValueMetadata entry) {
+        return tagValueName.startsWith(entry.getName());
     }
 
 }
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/TagValueDefinitionMatcher.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/matcher/TagValueDefinitionMatcher.java
similarity index 57%
copy from eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/TagValueDefinitionMatcher.java
copy to eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/matcher/TagValueDefinitionMatcher.java
index c899ce6..4d92b76 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/TagValueDefinitionMatcher.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/matcher/TagValueDefinitionMatcher.java
@@ -1,4 +1,4 @@
-package org.nuiton.eugene.models.tagvalue.matcher;
+package org.nuiton.eugene.models.extension.tagvalue.matcher;
 
 /*
  * #%L
@@ -22,10 +22,10 @@ package org.nuiton.eugene.models.tagvalue.matcher;
  * #L%
  */
 
-import com.google.common.collect.ImmutableMap;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinition;
+import com.google.common.collect.ImmutableSet;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadata;
 
-import java.util.Map;
+import java.util.Set;
 
 /**
  * To match a Tag value name.
@@ -37,24 +37,24 @@ import java.util.Map;
  */
 public abstract class TagValueDefinitionMatcher {
 
-    protected Map<String, TagValueDefinition> tagValueDefinitionMap;
+    protected Set<TagValueMetadata> tagValueDefinitionMap;
 
-    public TagValueDefinitionMatcher(Map<String, TagValueDefinition> tagValueDefinitionMap) {
-        this.tagValueDefinitionMap = ImmutableMap.<String, TagValueDefinition>builder().putAll(tagValueDefinitionMap).build();
+    public TagValueDefinitionMatcher(Set<TagValueMetadata> tagValueDefinitionMap) {
+        this.tagValueDefinitionMap = ImmutableSet.copyOf(tagValueDefinitionMap);
     }
 
-    public TagValueDefinition match(String tagValueName) {
-        TagValueDefinition tagValueDefinition = null;
-        for (Map.Entry<String, TagValueDefinition> entry : tagValueDefinitionMap.entrySet()) {
+    public TagValueMetadata match(String tagValueName) {
+        TagValueMetadata tagValueDefinition = null;
+        for (TagValueMetadata entry : tagValueDefinitionMap) {
             if (accept(tagValueName, entry)) {
                 // found tag value definition
-                tagValueDefinition = entry.getValue();
+                tagValueDefinition = entry;
                 break;
             }
         }
         return tagValueDefinition;
     }
 
-    protected abstract boolean accept(String tagValueName, Map.Entry<String, TagValueDefinition> entry);
+    protected abstract boolean accept(String tagValueName, TagValueMetadata entry);
 
 }
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/provider/AggregateTagValueMetadatasProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/provider/AggregateTagValueMetadatasProvider.java
new file mode 100644
index 0000000..6167328
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/provider/AggregateTagValueMetadatasProvider.java
@@ -0,0 +1,91 @@
+package org.nuiton.eugene.models.extension.tagvalue.provider;
+
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableSet;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.nuiton.eugene.models.extension.tagvalue.MismatchTagValueTargetException;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadata;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueNotFoundException;
+
+import java.util.Iterator;
+import java.util.ServiceLoader;
+import java.util.Set;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public class AggregateTagValueMetadatasProvider implements TagValueMetadatasProvider, Iterable<TagValueMetadatasProvider> {
+
+    /** Logger. */
+    private static final Log log = LogFactory.getLog(AggregateTagValueMetadatasProvider.class);
+
+    protected final Iterable<TagValueMetadatasProvider> providers;
+
+    /**
+     * Obtain a new provider of tag values definitions.
+     *
+     * @param loader the classloader to use (if none given will use the one of the current thread)
+     */
+    public AggregateTagValueMetadatasProvider(ClassLoader loader) {
+        if (loader == null) {
+
+            // use the current thread loader
+            loader = Thread.currentThread().getContextClassLoader();
+        }
+        this.providers = ServiceLoader.load(TagValueMetadatasProvider.class, loader);
+    }
+
+    /**
+     * Obtain a new provider of tag values definitions.
+     *
+     * @param providers the list of providers to use in the factory
+     */
+    public AggregateTagValueMetadatasProvider(Iterable<TagValueMetadatasProvider> providers) {
+        Preconditions.checkNotNull(providers);
+        this.providers = providers;
+    }
+
+    @Override
+    public Iterator<TagValueMetadatasProvider> iterator() {
+        return providers.iterator();
+    }
+
+    @Override
+    public Set<TagValueMetadata> getTagValues() {
+        ImmutableSet.Builder<TagValueMetadata> builder = ImmutableSet.builder();
+        for (TagValueMetadatasProvider tagValuesMetadatasProvider : providers) {
+            builder.addAll(tagValuesMetadatasProvider.getTagValues());
+        }
+
+        return builder.build();
+    }
+
+    @Override
+    public Optional<TagValueMetadata> getTagValue(String tagValueName) {
+        for (TagValueMetadatasProvider provider : providers) {
+            Optional<TagValueMetadata> result = provider.getTagValue(tagValueName);
+            if (result.isPresent()) {
+                return result;
+            }
+        }
+        return Optional.absent();
+    }
+
+    @Override
+    public void validate(String tagValueName, Class<?> type) throws TagValueNotFoundException, MismatchTagValueTargetException {
+        for (TagValueMetadatasProvider provider : providers) {
+            try {
+                provider.validate(tagValueName, type);
+                return;
+            } catch (TagValueNotFoundException e) {
+                // do nothing here
+            }
+        }
+        throw new TagValueNotFoundException();
+    }
+
+}
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/provider/DefaultTagValueMetadatasProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/provider/DefaultTagValueMetadatasProvider.java
new file mode 100644
index 0000000..8524dbc
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/provider/DefaultTagValueMetadatasProvider.java
@@ -0,0 +1,81 @@
+package org.nuiton.eugene.models.extension.tagvalue.provider;
+
+import com.google.common.base.Optional;
+import com.google.common.collect.ImmutableSet;
+import org.nuiton.eugene.models.extension.tagvalue.MismatchTagValueTargetException;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadata;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueNotFoundException;
+import org.nuiton.eugene.models.extension.tagvalue.matcher.EqualsTagValueNameMatcher;
+import org.nuiton.eugene.models.extension.tagvalue.matcher.StartsWithTagNameMatcher;
+import org.nuiton.eugene.models.extension.tagvalue.matcher.TagValueDefinitionMatcher;
+
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public class DefaultTagValueMetadatasProvider implements TagValueMetadatasProvider {
+
+    protected final Set<TagValueMetadata> tagValues;
+    protected final Set<TagValueDefinitionMatcher> matcher;
+
+    public DefaultTagValueMetadatasProvider(TagValueMetadata... tagValues) {
+        this.tagValues = ImmutableSet.copyOf(tagValues);
+        this.matcher = ImmutableSet.of(
+                new EqualsTagValueNameMatcher(getDefinitionForMatcher(EqualsTagValueNameMatcher.class)),
+                new StartsWithTagNameMatcher(getDefinitionForMatcher(StartsWithTagNameMatcher.class)));
+    }
+
+    @Override
+    public Set<TagValueMetadata> getTagValues() {
+        return tagValues;
+    }
+
+    @Override
+    public void validate(String tagValueName, Class<?> type) throws TagValueNotFoundException, MismatchTagValueTargetException {
+        Optional<TagValueMetadata> def = getTagValue(tagValueName);
+
+        if (!def.isPresent()) {
+            throw new TagValueNotFoundException();
+        }
+
+        boolean valid = false;
+
+        for (Class<?> target : def.get().getTargets()) {
+            if (target.equals(type) || target.isAssignableFrom(type)) {
+
+                // found one accepting target
+                valid = true;
+                break;
+            }
+        }
+
+        if (!valid) {
+            throw new MismatchTagValueTargetException();
+        }
+    }
+
+    @Override
+    public Optional<TagValueMetadata> getTagValue(String tagValueName) {
+        for (TagValueDefinitionMatcher tagValueDefinitionMatcher : matcher) {
+            TagValueMetadata def = tagValueDefinitionMatcher.match(tagValueName);
+            if (def != null)
+                return Optional.of(def);
+        }
+        return Optional.absent();
+    }
+
+    protected <M extends TagValueDefinitionMatcher> Set<TagValueMetadata> getDefinitionForMatcher(Class<M> matcherType) {
+        Set<TagValueMetadata> result = new LinkedHashSet<>();
+        for (TagValueMetadata entry : getTagValues()) {
+            if (matcherType.equals(entry.getMatcherClass())) {
+                result.add(entry);
+            }
+        }
+        return result;
+    }
+
+}
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/provider/TagValueMetadatasProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/provider/TagValueMetadatasProvider.java
new file mode 100644
index 0000000..67ef9ec
--- /dev/null
+++ b/eugene/src/main/java/org/nuiton/eugene/models/extension/tagvalue/provider/TagValueMetadatasProvider.java
@@ -0,0 +1,23 @@
+package org.nuiton.eugene.models.extension.tagvalue.provider;
+
+import com.google.common.base.Optional;
+import org.nuiton.eugene.models.extension.tagvalue.MismatchTagValueTargetException;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadata;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueNotFoundException;
+
+import java.util.Set;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public interface TagValueMetadatasProvider {
+
+    Set<TagValueMetadata> getTagValues();
+
+    void validate(String tagValueName, Class<?> type) throws TagValueNotFoundException, MismatchTagValueTargetException;
+
+    Optional<TagValueMetadata> getTagValue(String tagValueName);
+
+}
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/object/ObjectModelElement.java b/eugene/src/main/java/org/nuiton/eugene/models/object/ObjectModelElement.java
index 69b50ab..27e949f 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/object/ObjectModelElement.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/object/ObjectModelElement.java
@@ -22,6 +22,8 @@
 
 package org.nuiton.eugene.models.object;
 
+import org.nuiton.eugene.models.extension.stereotype.WithStereotypes;
+import org.nuiton.eugene.models.extension.tagvalue.WithTagValues;
 import org.nuiton.eugene.models.stereotype.StereotypeAble;
 import org.nuiton.eugene.models.tagvalue.TagValueAble;
 
@@ -32,7 +34,7 @@ import java.util.List;
  *
  * @author Cédric Pineau - pineau@codelutin.com
  */
-public interface ObjectModelElement extends TagValueAble, StereotypeAble {
+public interface ObjectModelElement extends TagValueAble, StereotypeAble, WithTagValues, WithStereotypes {
 
     /**
      * Returns the name of this element.
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/object/ObjectModelPackage.java b/eugene/src/main/java/org/nuiton/eugene/models/object/ObjectModelPackage.java
index a434200..c37505c 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/object/ObjectModelPackage.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/object/ObjectModelPackage.java
@@ -22,6 +22,8 @@ package org.nuiton.eugene.models.object;
  * #L%
  */
 
+import org.nuiton.eugene.models.extension.stereotype.WithStereotypes;
+import org.nuiton.eugene.models.extension.tagvalue.WithTagValues;
 import org.nuiton.eugene.models.stereotype.StereotypeAble;
 import org.nuiton.eugene.models.tagvalue.TagValueAble;
 
@@ -33,7 +35,7 @@ import java.util.List;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.12
  */
-public interface ObjectModelPackage extends TagValueAble, StereotypeAble {
+public interface ObjectModelPackage extends TagValueAble, StereotypeAble, WithTagValues, WithStereotypes {
 
     /**
      * @return the name of this package.
@@ -41,13 +43,11 @@ public interface ObjectModelPackage extends TagValueAble, StereotypeAble {
     String getName();
 
     /**
-     *
      * @return the number of sub packages. (0 for a root package).
      */
     int getNumberOfSubPackages();
 
     /**
-     *
      * @return parent package or {@code null} if the package is a root package.
      */
     ObjectModelPackage getParentPackage();
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/object/reader/AbstractObjectModelReader.java b/eugene/src/main/java/org/nuiton/eugene/models/object/reader/AbstractObjectModelReader.java
index 53b122b..403183f 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/object/reader/AbstractObjectModelReader.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/object/reader/AbstractObjectModelReader.java
@@ -26,9 +26,21 @@ import com.google.common.collect.Sets;
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.nuiton.eugene.EugeneTagValues;
+import org.nuiton.eugene.EugeneCoreTagValues;
 import org.nuiton.eugene.ModelHelper;
 import org.nuiton.eugene.ModelReader;
+import org.nuiton.eugene.models.extension.stereotype.InvalidStereotypeSyntaxException;
+import org.nuiton.eugene.models.extension.stereotype.MismatchStereotypeTargetException;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeMetadata;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeNotFoundException;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeUtil;
+import org.nuiton.eugene.models.extension.stereotype.provider.AggregateStereotypeMetadatasProvider;
+import org.nuiton.eugene.models.extension.tagvalue.InvalidTagValueSyntaxException;
+import org.nuiton.eugene.models.extension.tagvalue.MismatchTagValueTargetException;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadata;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueNotFoundException;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueUtil;
+import org.nuiton.eugene.models.extension.tagvalue.provider.AggregateTagValueMetadatasProvider;
 import org.nuiton.eugene.models.object.ObjectModel;
 import org.nuiton.eugene.models.object.ObjectModelAssociationClass;
 import org.nuiton.eugene.models.object.ObjectModelAttribute;
@@ -42,16 +54,7 @@ import org.nuiton.eugene.models.object.xml.ObjectModelAssociationClassImpl;
 import org.nuiton.eugene.models.object.xml.ObjectModelClassifierImpl;
 import org.nuiton.eugene.models.object.xml.ObjectModelImpl;
 import org.nuiton.eugene.models.object.xml.ObjectModelPackageImpl;
-import org.nuiton.eugene.models.stereotype.InvalidStereotypeSyntaxException;
-import org.nuiton.eugene.models.stereotype.MismatchStereotypeTargetException;
-import org.nuiton.eugene.models.stereotype.StereotypeDefinitionProviders;
-import org.nuiton.eugene.models.stereotype.StereotypeNotFoundException;
 import org.nuiton.eugene.models.stereotype.Stereotypes;
-import org.nuiton.eugene.models.tagvalue.InvalidTagValueSyntaxException;
-import org.nuiton.eugene.models.tagvalue.MismatchTagValueTargetException;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProviders;
-import org.nuiton.eugene.models.tagvalue.TagValueNotFoundException;
-import org.nuiton.eugene.models.tagvalue.TagValues;
 import org.nuiton.util.FileUtil;
 import org.nuiton.util.RecursiveProperties;
 import org.nuiton.util.StringUtil;
@@ -103,17 +106,17 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
 
     protected void beforeReadFile(File... files) {
 
-        if (tagValueDefinitionProvider == null) {
+        if (tagValueMetadatasProvider == null) {
             if (log.isDebugEnabled()) {
                 log.debug("No tag value provider filled, will instanciate a new default one");
             }
-            setTagValueDefinitionProvider(TagValueDefinitionProviders.newProvider(getClass().getClassLoader(), false));
+            setTagValueMetadatasProvider(new AggregateTagValueMetadatasProvider(getClass().getClassLoader()));
         }
-        if (stereotypeDefinitionProvider == null) {
+        if (stereotypeMetadatasProvider == null) {
             if (log.isDebugEnabled()) {
                 log.debug("No stereotype provider filled, will instanciate a new default one");
             }
-            setStereotypeDefinitionProvider(StereotypeDefinitionProviders.newProvider(getClass().getClassLoader(), false));
+            setStereotypeMetadatasProvider(new AggregateStereotypeMetadatasProvider(getClass().getClassLoader()));
         }
 
     }
@@ -273,7 +276,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
                     // package stereotype
                     Matcher matcher;
                     try {
-                        matcher = Stereotypes.getPackageMatcher(key);
+                        matcher = StereotypeUtil.getPackageMatcher(key);
                     } catch (InvalidStereotypeSyntaxException e) {
                         String message = "Invalid stereotype [" + key + "] : syntax is not correct.";
                         if (strictLoading) {
@@ -296,7 +299,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
                     // target real type
                     Class<?> targetType = getTargetType(target);
 
-                    Set<String> stereotypes = Stereotypes.getStereotypes(value);
+                    Set<String> stereotypes = StereotypeUtil.getStereotypes(value);
                     for (String stereotype : stereotypes) {
                         boolean loaded = loadPackageStereotype(model, key, fqn, targetType, stereotype);
                         safe &= loaded;
@@ -326,7 +329,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
                 // check key is ok
                 Matcher matcher;
                 try {
-                    matcher = Stereotypes.getMatcher(key);
+                    matcher = StereotypeUtil.getMatcher(key);
                 } catch (InvalidStereotypeSyntaxException e) {
                     String message = "Invalid stereotype [" + key + "] : syntax is not correct.";
                     if (strictLoading) {
@@ -350,7 +353,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
                 // target real type
                 Class<?> targetType = getTargetType(target);
 
-                Set<String> stereotypes = Stereotypes.getStereotypes(value);
+                Set<String> stereotypes = StereotypeUtil.getStereotypes(value);
                 for (String stereotype : stereotypes) {
                     boolean loaded = loadStereotype(model, key, fqn, target, targetName, targetType, stereotype);
                     safe &= loaded;
@@ -458,7 +461,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
 
         Matcher matcher;
         try {
-            matcher = TagValues.getModelMatcher(key);
+            matcher = TagValueUtil.getModelMatcher(key);
         } catch (InvalidTagValueSyntaxException e) {
             String message = "Invalid model tag value [" + key + "] : only tagvalue or tagValue is allowed on model in properties";
             if (isStrictLoading()) {
@@ -478,7 +481,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         boolean safe = false;
 
         try {
-            tagValueDefinitionProvider.validate(tag, ObjectModel.class);
+            tagValueMetadatasProvider.validate(tag, ObjectModel.class);
             safe = true;
         } catch (TagValueNotFoundException e) {
             String message = "Invalid model tag value [" + key + "] : the tagvalue '" + tag + "' is unknown.";
@@ -507,7 +510,8 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         if (safe) {
 
             // test if tagValue is deprecated
-            boolean deprecated = tagValueDefinitionProvider.isDeprecated(tag);
+            TagValueMetadata tagValueMetadata = tagValueMetadatasProvider.getTagValue(tag).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated tagValue usage [" + key + "] : " + value);
@@ -521,7 +525,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         }
 
         ObjectModelImpl modelImpl = (ObjectModelImpl) model;
-        if (tag.equals(EugeneTagValues.TAG_VERSION)) {
+        if (tag.equals(EugeneCoreTagValues.Store.version.getName())) {
 
             // push directly the version in the model version property
             modelImpl.setVersion(value);
@@ -538,7 +542,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
 
         Matcher matcher;
         try {
-            matcher = TagValues.getPackageMatcher(key);
+            matcher = TagValueUtil.getPackageMatcher(key);
         } catch (InvalidTagValueSyntaxException e) {
             String message = "Invalid package tag value [" + key + "]";
             if (isStrictLoading()) {
@@ -560,7 +564,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         boolean safe = false;
 
         try {
-            tagValueDefinitionProvider.validate(tag, ObjectModelPackage.class);
+            tagValueMetadatasProvider.validate(tag, ObjectModelPackage.class);
             safe = true;
         } catch (TagValueNotFoundException e) {
             String message = "Invalid model tag value [" + key + "] : the tagvalue '" + tag + "' is unknown.";
@@ -589,7 +593,8 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         if (safe) {
 
             // test if tagValue is deprecated
-            boolean deprecated = tagValueDefinitionProvider.isDeprecated(tag);
+            TagValueMetadata tagValueMetadata = tagValueMetadatasProvider.getTagValue(tag).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated tagValue usage [" + key + "] : " + value);
@@ -614,7 +619,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
     protected boolean loadTagValue(ObjectModel model, String key, String value) {
         Matcher matcher;
         try {
-            matcher = TagValues.getMatcher(key);
+            matcher = TagValueUtil.getMatcher(key);
         } catch (InvalidTagValueSyntaxException e) {
 
             String message = "Invalid tag value [" + key + "] : syntax is not correct.";
@@ -653,7 +658,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         boolean safe = false;
 
         try {
-            tagValueDefinitionProvider.validate(tag, targetType);
+            tagValueMetadatasProvider.validate(tag, targetType);
             safe = true;
         } catch (TagValueNotFoundException e) {
 
@@ -685,7 +690,8 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         if (safe) {
 
             // test if tagValue is deprecated
-            boolean deprecated = tagValueDefinitionProvider.isDeprecated(tag);
+            TagValueMetadata tagValueMetadata = tagValueMetadatasProvider.getTagValue(tag).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated tagValue usage [" + key + "] : " + value);
@@ -738,7 +744,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         boolean safe = false;
 
         try {
-            stereotypeDefinitionProvider.validate(stereotype, ObjectModel.class);
+            stereotypeMetadatasProvider.validate(stereotype, ObjectModel.class);
             safe = true;
         } catch (StereotypeNotFoundException e) {
 
@@ -768,7 +774,8 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         if (safe) {
 
             // test if stereotype is deprecated
-            boolean deprecated = stereotypeDefinitionProvider.isDeprecated(stereotype);
+            StereotypeMetadata tagValueMetadata = stereotypeMetadatasProvider.getStereotype(stereotype).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated model stereotype usage: " + stereotype);
@@ -801,7 +808,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
 
         boolean safe = false;
         try {
-            stereotypeDefinitionProvider.validate(stereotype, targetType);
+            stereotypeMetadatasProvider.validate(stereotype, targetType);
             safe = true;
         } catch (StereotypeNotFoundException e) {
 
@@ -831,7 +838,9 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         if (safe) {
 
             // test if stereotype is deprecated
-            boolean deprecated = stereotypeDefinitionProvider.isDeprecated(stereotype);
+            StereotypeMetadata tagValueMetadata = stereotypeMetadatasProvider.getStereotype(stereotype).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
+
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated stereotype usage [" + key + "] : " + stereotype);
@@ -886,7 +895,7 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
 
         boolean safe = false;
         try {
-            stereotypeDefinitionProvider.validate(stereotype, targetType);
+            stereotypeMetadatasProvider.validate(stereotype, targetType);
             safe = true;
         } catch (StereotypeNotFoundException e) {
 
@@ -916,7 +925,9 @@ public abstract class AbstractObjectModelReader extends ModelReader<ObjectModel>
         if (safe) {
 
             // test if tagValue is deprecated
-            boolean deprecated = stereotypeDefinitionProvider.isDeprecated(stereotype);
+            StereotypeMetadata tagValueMetadata = stereotypeMetadatasProvider.getStereotype(stereotype).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
+
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated stereotype usage [" + key + "] : " + stereotype);
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/FlatModelExtensionFileParser.java b/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/FlatModelExtensionFileParser.java
index bf0682e..7ca8b01 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/FlatModelExtensionFileParser.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/FlatModelExtensionFileParser.java
@@ -25,11 +25,12 @@ package org.nuiton.eugene.models.object.reader.extension;
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.nuiton.eugene.models.extension.stereotype.InvalidStereotypeSyntaxException;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeUtil;
+import org.nuiton.eugene.models.extension.tagvalue.InvalidTagValueSyntaxException;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueUtil;
 import org.nuiton.eugene.models.object.reader.InvalidModelPropertiesException;
-import org.nuiton.eugene.models.stereotype.InvalidStereotypeSyntaxException;
 import org.nuiton.eugene.models.stereotype.Stereotypes;
-import org.nuiton.eugene.models.tagvalue.InvalidTagValueSyntaxException;
-import org.nuiton.eugene.models.tagvalue.TagValues;
 import org.nuiton.util.RecursiveProperties;
 import org.nuiton.util.StringUtil;
 
@@ -127,7 +128,7 @@ public class FlatModelExtensionFileParser implements ModelExtensionFileParser {
             // model tag value
             if (tagValueTypeKey) {
 
-                Matcher matcher = TagValues.getModelMatcher(key);
+                Matcher matcher = TagValueUtil.getModelMatcher(key);
 
                 String tag = matcher.group(2);
 
@@ -146,7 +147,7 @@ public class FlatModelExtensionFileParser implements ModelExtensionFileParser {
             if (stereoTypeKey) {
 
                 // package stereotype
-                Matcher matcher = Stereotypes.getPackageMatcher(key);
+                Matcher matcher = StereotypeUtil.getPackageMatcher(key);
 
                 String fqn = matcher.group(1);
                 fqn = StringUtil.substring(fqn, 0, -1); // remove ended .
@@ -163,7 +164,7 @@ public class FlatModelExtensionFileParser implements ModelExtensionFileParser {
 
                 // package tag value
 
-                Matcher matcher = TagValues.getPackageMatcher(key);
+                Matcher matcher = TagValueUtil.getPackageMatcher(key);
 
                 String packageName = matcher.group(1);
                 packageName = StringUtil.substring(packageName, 0, -1); // remove ended .
@@ -184,7 +185,7 @@ public class FlatModelExtensionFileParser implements ModelExtensionFileParser {
             // stereotype property
 
             // check key is ok
-            Matcher matcher = Stereotypes.getMatcher(key);
+            Matcher matcher = StereotypeUtil.getMatcher(key);
 
             String fqn = matcher.group(1);
             fqn = StringUtil.substring(fqn, 0, -1); // remove ended .
@@ -208,7 +209,7 @@ public class FlatModelExtensionFileParser implements ModelExtensionFileParser {
 
             // tag value property
 
-            Matcher matcher = TagValues.getMatcher(key);
+            Matcher matcher = TagValueUtil.getMatcher(key);
 
             String fqn = matcher.group(1);
             fqn = StringUtil.substring(fqn, 0, -1); // remove ended dot
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/LoadModelExtension.java b/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/LoadModelExtension.java
index 5fb3a80..43a6ca8 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/LoadModelExtension.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/LoadModelExtension.java
@@ -24,7 +24,19 @@ package org.nuiton.eugene.models.object.reader.extension;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.nuiton.eugene.EugeneTagValues;
+import org.nuiton.eugene.EugeneCoreTagValues;
+import org.nuiton.eugene.models.extension.stereotype.InvalidStereotypeSyntaxException;
+import org.nuiton.eugene.models.extension.stereotype.MismatchStereotypeTargetException;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeMetadata;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeNotFoundException;
+import org.nuiton.eugene.models.extension.stereotype.provider.AggregateStereotypeMetadatasProvider;
+import org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider;
+import org.nuiton.eugene.models.extension.tagvalue.InvalidTagValueSyntaxException;
+import org.nuiton.eugene.models.extension.tagvalue.MismatchTagValueTargetException;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueMetadata;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueNotFoundException;
+import org.nuiton.eugene.models.extension.tagvalue.provider.AggregateTagValueMetadatasProvider;
+import org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider;
 import org.nuiton.eugene.models.object.ObjectModel;
 import org.nuiton.eugene.models.object.ObjectModelAssociationClass;
 import org.nuiton.eugene.models.object.ObjectModelAttribute;
@@ -34,16 +46,6 @@ import org.nuiton.eugene.models.object.ObjectModelPackage;
 import org.nuiton.eugene.models.object.xml.ObjectModelAssociationClassImpl;
 import org.nuiton.eugene.models.object.xml.ObjectModelClassifierImpl;
 import org.nuiton.eugene.models.object.xml.ObjectModelImpl;
-import org.nuiton.eugene.models.stereotype.InvalidStereotypeSyntaxException;
-import org.nuiton.eugene.models.stereotype.MismatchStereotypeTargetException;
-import org.nuiton.eugene.models.stereotype.StereotypeDefinitionProvider;
-import org.nuiton.eugene.models.stereotype.StereotypeDefinitionProviders;
-import org.nuiton.eugene.models.stereotype.StereotypeNotFoundException;
-import org.nuiton.eugene.models.tagvalue.InvalidTagValueSyntaxException;
-import org.nuiton.eugene.models.tagvalue.MismatchTagValueTargetException;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProvider;
-import org.nuiton.eugene.models.tagvalue.TagValueDefinitionProviders;
-import org.nuiton.eugene.models.tagvalue.TagValueNotFoundException;
 
 import java.io.File;
 import java.io.IOException;
@@ -62,8 +64,8 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
     protected final boolean verbose;
     protected final boolean strictLoading;
     protected final M model;
-    protected final TagValueDefinitionProvider tagValueDefinitionProvider;
-    protected final StereotypeDefinitionProvider stereotypeDefinitionProvider;
+    protected final TagValueMetadatasProvider tagValueMetadatasProvider;
+    protected final StereotypeMetadatasProvider stereotypeMetadatasProvider;
 
     public static <M extends ObjectModel> void loadForFlatModel(boolean verbose, boolean strictLoading, M model, File modelExtension) throws IOException {
         FlatModelExtensionFileParser parser = new FlatModelExtensionFileParser(strictLoading);
@@ -91,8 +93,8 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         this.verbose = verbose;
         this.strictLoading = strictLoading;
         this.model = model;
-        this.tagValueDefinitionProvider = TagValueDefinitionProviders.newProvider(getClass().getClassLoader(), false);
-        this.stereotypeDefinitionProvider = StereotypeDefinitionProviders.newProvider(getClass().getClassLoader(), false);
+        this.tagValueMetadatasProvider = new AggregateTagValueMetadatasProvider(getClass().getClassLoader());
+        this.stereotypeMetadatasProvider = new AggregateStereotypeMetadatasProvider(getClass().getClassLoader());
     }
 
     public void load(File modelExtension) throws IOException, InvalidTagValueSyntaxException, InvalidStereotypeSyntaxException {
@@ -108,7 +110,7 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         boolean safe = false;
 
         try {
-            tagValueDefinitionProvider.validate(tag, ObjectModel.class);
+            tagValueMetadatasProvider.validate(tag, ObjectModel.class);
             safe = true;
         } catch (TagValueNotFoundException e) {
             String message = "Invalid model tag value: the tagvalue '" + tag + "' is unknown.";
@@ -129,7 +131,8 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         if (safe) {
 
             // test if tagValue is deprecated
-            boolean deprecated = tagValueDefinitionProvider.isDeprecated(tag);
+            TagValueMetadata tagValueMetadata = tagValueMetadatasProvider.getTagValue(tag).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated tagValue usage: " + value);
@@ -143,7 +146,7 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         }
 
         ObjectModelImpl modelImpl = (ObjectModelImpl) model;
-        if (tag.equals(EugeneTagValues.TAG_VERSION)) {
+        if (tag.equals(EugeneCoreTagValues.Store.version.getName())) {
 
             // push directly the version in the model version property
             modelImpl.setVersion(value);
@@ -163,7 +166,7 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         boolean safe = false;
 
         try {
-            stereotypeDefinitionProvider.validate(stereotype, ObjectModel.class);
+            stereotypeMetadatasProvider.validate(stereotype, ObjectModel.class);
             safe = true;
         } catch (StereotypeNotFoundException e) {
 
@@ -185,7 +188,8 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         if (safe) {
 
             // test if stereotype is deprecated
-            boolean deprecated = stereotypeDefinitionProvider.isDeprecated(stereotype);
+            StereotypeMetadata tagValueMetadata = stereotypeMetadatasProvider.getStereotype(stereotype).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 log.warn("Deprecated model stereotype usage: " + stereotype);
             }
@@ -208,7 +212,7 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         boolean safe = false;
 
         try {
-            tagValueDefinitionProvider.validate(tag, ObjectModelPackage.class);
+            tagValueMetadatasProvider.validate(tag, ObjectModelPackage.class);
             safe = true;
         } catch (TagValueNotFoundException e) {
             String message = "Invalid tag value on package [" + packageName + "]: the tagvalue '" + tag + "' is unknown.";
@@ -230,7 +234,8 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         if (safe) {
 
             // test if tagValue is deprecated
-            boolean deprecated = tagValueDefinitionProvider.isDeprecated(tag);
+            TagValueMetadata tagValueMetadata = tagValueMetadatasProvider.getTagValue(tag).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated tagValue usage on package [" + packageName + "]: " + value);
@@ -256,7 +261,7 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
 
         boolean safe = false;
         try {
-            stereotypeDefinitionProvider.validate(stereotype, ObjectModelPackage.class);
+            stereotypeMetadatasProvider.validate(stereotype, ObjectModelPackage.class);
             safe = true;
         } catch (StereotypeNotFoundException e) {
             String message = "Invalid model stereotype on package [" + packageName + "]: the stereotype '" + stereotype + "' is unknown.";
@@ -277,7 +282,8 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         if (safe) {
 
             // test if tagValue is deprecated
-            boolean deprecated = stereotypeDefinitionProvider.isDeprecated(stereotype);
+            StereotypeMetadata tagValueMetadata = stereotypeMetadatasProvider.getStereotype(stereotype).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 log.warn("Deprecated stereotype usage on package [" + packageName + "]: " + stereotype);
             }
@@ -310,7 +316,7 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         boolean safe = false;
 
         try {
-            tagValueDefinitionProvider.validate(tag, ObjectModelClass.class);
+            tagValueMetadatasProvider.validate(tag, ObjectModelClass.class);
             safe = true;
         } catch (TagValueNotFoundException e) {
 
@@ -333,7 +339,8 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         if (safe) {
 
             // test if tagValue is deprecated
-            boolean deprecated = tagValueDefinitionProvider.isDeprecated(tag);
+            TagValueMetadata tagValueMetadata = tagValueMetadatasProvider.getTagValue(tag).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated tagValue usage on class [" + className + "] : " + value);
@@ -368,7 +375,7 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
 
         boolean safe = false;
         try {
-            stereotypeDefinitionProvider.validate(stereotype, ObjectModelClassifier.class);
+            stereotypeMetadatasProvider.validate(stereotype, ObjectModelClassifier.class);
             safe = true;
         } catch (StereotypeNotFoundException e) {
 
@@ -390,7 +397,8 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         if (safe) {
 
             // test if stereotype is deprecated
-            boolean deprecated = stereotypeDefinitionProvider.isDeprecated(stereotype);
+            StereotypeMetadata tagValueMetadata = stereotypeMetadatasProvider.getStereotype(stereotype).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated stereotype usage on class [" + className + "]: " + stereotype);
@@ -424,7 +432,7 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         boolean safe = false;
 
         try {
-            tagValueDefinitionProvider.validate(tag, ObjectModelAttribute.class);
+            tagValueMetadatasProvider.validate(tag, ObjectModelAttribute.class);
             safe = true;
         } catch (TagValueNotFoundException e) {
 
@@ -447,7 +455,8 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         if (safe) {
 
             // test if tagValue is deprecated
-            boolean deprecated = tagValueDefinitionProvider.isDeprecated(tag);
+            TagValueMetadata tagValueMetadata = tagValueMetadatasProvider.getTagValue(tag).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 if (log.isWarnEnabled()) {
                     log.warn("Deprecated tagValue usage on attribute [" + className + "#" + attributeName + "] : " + value);
@@ -489,7 +498,7 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
 
         boolean safe = false;
         try {
-            stereotypeDefinitionProvider.validate(stereotype, ObjectModelAttribute.class);
+            stereotypeMetadatasProvider.validate(stereotype, ObjectModelAttribute.class);
             safe = true;
         } catch (StereotypeNotFoundException e) {
 
@@ -511,7 +520,8 @@ public class LoadModelExtension<M extends ObjectModel> implements ModelExtension
         if (safe) {
 
             // test if stereotype is deprecated
-            boolean deprecated = stereotypeDefinitionProvider.isDeprecated(stereotype);
+            StereotypeMetadata tagValueMetadata = stereotypeMetadatasProvider.getStereotype(stereotype).get();
+            boolean deprecated = tagValueMetadata.isDeprecated();
             if (deprecated) {
                 log.warn("Deprecated stereotype usage on attribute [" + className + "]: " + stereotype);
             }
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/ModelExtensionFileParser.java b/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/ModelExtensionFileParser.java
index 42165b1..9ab5866 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/ModelExtensionFileParser.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/object/reader/extension/ModelExtensionFileParser.java
@@ -22,8 +22,9 @@ package org.nuiton.eugene.models.object.reader.extension;
  * #L%
  */
 
-import org.nuiton.eugene.models.stereotype.InvalidStereotypeSyntaxException;
-import org.nuiton.eugene.models.tagvalue.InvalidTagValueSyntaxException;
+
+import org.nuiton.eugene.models.extension.stereotype.InvalidStereotypeSyntaxException;
+import org.nuiton.eugene.models.extension.tagvalue.InvalidTagValueSyntaxException;
 
 import java.io.File;
 import java.io.IOException;
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelAttributeImpl.java b/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelAttributeImpl.java
index 6c0ef06..417338b 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelAttributeImpl.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelAttributeImpl.java
@@ -26,7 +26,7 @@ import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Sets;
 import org.apache.commons.lang3.StringUtils;
-import org.nuiton.eugene.EugeneStereoTypes;
+import org.nuiton.eugene.EugeneCoreStereotypes;
 import org.nuiton.eugene.GeneratorUtil;
 import org.nuiton.eugene.models.object.ObjectModelAttribute;
 import org.nuiton.eugene.models.object.ObjectModelClass;
@@ -298,7 +298,7 @@ public class ObjectModelAttributeImpl extends ObjectModelParameterImpl
     @Override
     public ObjectModelImplRef addStereotype(ObjectModelImplRef stereotype) {
         String stereotypeName = stereotype.getName();
-        if (EugeneStereoTypes.STEREOTYPE_ORDERED.equals(stereotypeName)) {
+        if (EugeneCoreStereotypes.Store.ordered.getName().equals(stereotypeName)) {
             setOrdered(true);
         }
         return super.addStereotype(stereotype);
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelElementImpl.java b/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelElementImpl.java
index 933a90c..d35e606 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelElementImpl.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelElementImpl.java
@@ -26,7 +26,7 @@ import com.google.common.collect.Iterables;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.nuiton.eugene.EugeneTagValues;
+import org.nuiton.eugene.EugeneCoreTagValues;
 import org.nuiton.eugene.models.object.ObjectModelElement;
 import org.nuiton.eugene.models.object.ObjectModelJavaModifier;
 import org.nuiton.eugene.models.object.ObjectModelModifier;
@@ -176,8 +176,8 @@ public abstract class ObjectModelElementImpl implements ObjectModelElement {
 
     @Override
     public String getDocumentation() {
-        if (documentation == null && hasTagValue(EugeneTagValues.TAG_DOCUMENTATION)) {
-            String doc = getTagValue(EugeneTagValues.TAG_DOCUMENTATION);
+        if (documentation == null && hasTagValue(EugeneCoreTagValues.Store.documentation.getName())) {
+            String doc = getTagValue(EugeneCoreTagValues.Store.documentation.getName());
             if (StringUtils.isNotEmpty(doc)) {
                 documentation = doc;
             }
@@ -211,6 +211,11 @@ public abstract class ObjectModelElementImpl implements ObjectModelElement {
     }
 
     @Override
+    public void removeStereotype(String stereotype) {
+        stereotypes.remove(stereotype);
+    }
+
+    @Override
     public Map<String, String> getTagValues() {
         return tagValues;
     }
@@ -226,6 +231,11 @@ public abstract class ObjectModelElementImpl implements ObjectModelElement {
     }
 
     @Override
+    public void removeTagValue(String tagvalue) {
+        tagValues.remove(tagvalue);
+    }
+
+    @Override
     public void addTagValue(String tagValue, String value) {
         String oldValue = getTagValue(tagValue);
         if (StringUtils.isNotEmpty(oldValue)) {
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelImpl.java b/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelImpl.java
index 9a58dfa..425cd6f 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelImpl.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelImpl.java
@@ -39,6 +39,7 @@ import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -396,6 +397,46 @@ public class ObjectModelImpl implements ObjectModel {
         stereotypes.add(stereotype);
     }
 
+    @Override
+    public void removeStereotype(String stereotype) {
+        stereotypes.remove(stereotype);
+    }
+
+    public void removePackage(String packageName) {
+
+        for (ObjectModelClass objectModelClass : new LinkedHashSet<>(classes.values()) ) {
+            if (objectModelClass.getQualifiedName().startsWith(packageName+".")) {
+                classes.remove(objectModelClass.getQualifiedName());
+            }
+        }
+        for (ObjectModelInterface objectModelInterface : new LinkedHashSet<>(interfaces.values()) ) {
+            if (objectModelInterface.getQualifiedName().startsWith(packageName+".")) {
+                classes.remove(objectModelInterface.getQualifiedName());
+            }
+        }
+        for (ObjectModelEnumeration objectModelEnumeration : new LinkedHashSet<>(enumerations.values()) ) {
+            if (objectModelEnumeration.getQualifiedName().startsWith(packageName+".")) {
+                classes.remove(objectModelEnumeration.getQualifiedName());
+            }
+        }
+        packages.remove(packageName);
+
+    }
+
+    public void removeClass(String className) {
+
+        classes.remove(className);
+        
+    }
+
+    public void removeInterface(String interfaceName) {
+        interfaces.remove(interfaceName);
+    }
+
+    public void removeEnumeration(String enumerationName) {
+        enumerations.remove(enumerationName);
+    }
+    
     protected void mergePackages(
             ObjectModelPackageImpl initialPackage,
             ObjectModelPackageImpl additionalPackage) {
@@ -639,6 +680,11 @@ public class ObjectModelImpl implements ObjectModel {
         return tagValues.containsKey(tagValue);
     }
 
+    @Override
+    public void removeTagValue(String tagvalue) {
+        tagValues.remove(tagvalue);
+    }
+
     /**
      * Get the extension associated to the reference (unique). Create it if not exist.
      *
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelPackageImpl.java b/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelPackageImpl.java
index a6a11da..16dfe5f 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelPackageImpl.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/object/xml/ObjectModelPackageImpl.java
@@ -111,6 +111,11 @@ public class ObjectModelPackageImpl implements ObjectModelPackage {
     }
 
     @Override
+    public void removeStereotype(String stereotype) {
+        stereotypes.remove(stereotype);
+    }
+
+    @Override
     public Map<String, String> getTagValues() {
         return tagValues;
     }
@@ -139,6 +144,11 @@ public class ObjectModelPackageImpl implements ObjectModelPackage {
     }
 
     @Override
+    public void removeTagValue(String tagvalue) {
+        tagValues.remove(tagvalue);
+    }
+
+    @Override
     public List<String> getComments() {
         return comments;
     }
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/state/xml/StateModelImpl.java b/eugene/src/main/java/org/nuiton/eugene/models/state/xml/StateModelImpl.java
index f45a87d..ddabd63 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/state/xml/StateModelImpl.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/state/xml/StateModelImpl.java
@@ -103,6 +103,11 @@ public class StateModelImpl implements StateModel {
         stereotypes.add(stereotype);
     }
 
+    @Override
+    public void removeStereotype(String stereotype) {
+        stereotypes.remove(stereotype);
+    }
+
     /**
      * Set model name.
      *
@@ -161,6 +166,11 @@ public class StateModelImpl implements StateModel {
         return modelTagValues.containsKey(tagValue);
     }
 
+    @Override
+    public void removeTagValue(String tagvalue) {
+        modelTagValues.remove(tagvalue);
+    }
+
     /**
      * Set model version.
      *
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/AggregateStereotypeDefinitionProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/AggregateStereotypeDefinitionProvider.java
index 9335cdf..44463c0 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/AggregateStereotypeDefinitionProvider.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/AggregateStereotypeDefinitionProvider.java
@@ -34,6 +34,7 @@ import java.util.ServiceLoader;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class AggregateStereotypeDefinitionProvider extends StereotypeDefinitionProvider implements Iterable<StereotypeDefinitionProvider> {
 
     /** Logger. */
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/InvalidStereotypeSyntaxException.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/InvalidStereotypeSyntaxException.java
index f751d4e..a4dfde5 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/InvalidStereotypeSyntaxException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/InvalidStereotypeSyntaxException.java
@@ -28,6 +28,7 @@ package org.nuiton.eugene.models.stereotype;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class InvalidStereotypeSyntaxException extends Exception {
 
     private static final long serialVersionUID = 1L;
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MismatchStereotypeTargetException.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MismatchStereotypeTargetException.java
index f62b9bc..25226a4 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MismatchStereotypeTargetException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MismatchStereotypeTargetException.java
@@ -28,6 +28,7 @@ package org.nuiton.eugene.models.stereotype;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class MismatchStereotypeTargetException extends Exception {
 
     private static final long serialVersionUID = 1L;
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MissingStereoTypeException.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MissingStereoTypeException.java
index 1b29142..8c54a44 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MissingStereoTypeException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MissingStereoTypeException.java
@@ -36,6 +36,7 @@ import java.util.Set;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 3.0
  */
+@Deprecated
 public class MissingStereoTypeException extends RuntimeException {
 
     private static final long serialVersionUID = 1L;
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MyStereotypeDefinitionProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MyStereotypeDefinitionProvider.java
index c25195e..b713d5f 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MyStereotypeDefinitionProvider.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/MyStereotypeDefinitionProvider.java
@@ -30,6 +30,7 @@ import org.nuiton.eugene.models.object.ObjectModelAttribute;
  * @author Tony Chemit - chemit@codelutin.com
  * @since XXX
  */
+@Deprecated
 public class MyStereotypeDefinitionProvider extends StereotypeDefinitionProvider {
 
     @StereotypeDefinition(target = ObjectModelAttribute.class,
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeAble.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeAble.java
index c9b4744..741879c 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeAble.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeAble.java
@@ -30,6 +30,7 @@ import java.util.Set;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public interface StereotypeAble {
 
     /**
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinition.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinition.java
index 2f94f27..b5ddafb 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinition.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinition.java
@@ -46,6 +46,7 @@ import java.lang.annotation.Target;
  */
 @Target(ElementType.FIELD)
 @Retention(RetentionPolicy.RUNTIME)
+@Deprecated
 public @interface StereotypeDefinition {
 
     /**
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProvider.java
index 0920cec..97a3681 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProvider.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProvider.java
@@ -61,6 +61,7 @@ import java.util.TreeMap;
  * @see EugeneStereoTypes
  * @since 2.9
  */
+@Deprecated
 public class StereotypeDefinitionProvider {
 
     /** Logger. */
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProviderManagerExtension.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProviderManagerExtension.java
index e4f899b..f700af1 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProviderManagerExtension.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProviderManagerExtension.java
@@ -30,6 +30,7 @@ import com.google.common.base.Preconditions;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.11
  */
+@Deprecated
 public class StereotypeDefinitionProviderManagerExtension {
 
     /**
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProviders.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProviders.java
index 3d13f8a..4ae281b 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProviders.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeDefinitionProviders.java
@@ -31,6 +31,7 @@ import org.apache.commons.logging.LogFactory;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class StereotypeDefinitionProviders {
 
     /** Logger. */
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeNotFoundException.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeNotFoundException.java
index f5d9a89..d06b588 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeNotFoundException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/StereotypeNotFoundException.java
@@ -28,6 +28,7 @@ package org.nuiton.eugene.models.stereotype;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class StereotypeNotFoundException extends Exception {
 
     private static final long serialVersionUID = 1L;
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/Stereotypes.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/Stereotypes.java
index 2bc9553..60c0f6b 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/Stereotypes.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/Stereotypes.java
@@ -38,6 +38,7 @@ import java.util.regex.Pattern;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class Stereotypes {
 
     protected static final Pattern PACKAGE_STEREOTYPE_PATTERN = Pattern
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/package-info.java b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/package-info.java
index 88f6c0a..a9be001 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/stereotype/package-info.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/stereotype/package-info.java
@@ -27,5 +27,6 @@
  *
  * @since 2.9
  */
+@Deprecated
 package org.nuiton.eugene.models.stereotype;
 
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/AggregateTagValueDefinitionProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/AggregateTagValueDefinitionProvider.java
index 64c93a6..d7ed33c 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/AggregateTagValueDefinitionProvider.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/AggregateTagValueDefinitionProvider.java
@@ -34,6 +34,7 @@ import java.util.ServiceLoader;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class AggregateTagValueDefinitionProvider extends TagValueDefinitionProvider implements Iterable<TagValueDefinitionProvider> {
 
     /** Logger. */
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/InvalidTagValueSyntaxException.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/InvalidTagValueSyntaxException.java
index 7585d91..2335218 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/InvalidTagValueSyntaxException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/InvalidTagValueSyntaxException.java
@@ -28,6 +28,7 @@ package org.nuiton.eugene.models.tagvalue;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class InvalidTagValueSyntaxException extends Exception {
 
     private static final long serialVersionUID = 1L;
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MismatchTagValueTargetException.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MismatchTagValueTargetException.java
index 9c2570f..526b671 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MismatchTagValueTargetException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MismatchTagValueTargetException.java
@@ -28,6 +28,7 @@ package org.nuiton.eugene.models.tagvalue;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class MismatchTagValueTargetException extends Exception {
 
     private static final long serialVersionUID = 1L;
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MissingTagValueException.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MissingTagValueException.java
index fbf0369..00a17fd 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MissingTagValueException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/MissingTagValueException.java
@@ -36,6 +36,7 @@ import java.util.Set;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 3.0
  */
+@Deprecated
 public class MissingTagValueException extends RuntimeException {
 
     private static final long serialVersionUID = 1L;
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueAble.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueAble.java
index 734e532..0a71892 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueAble.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueAble.java
@@ -30,6 +30,7 @@ import java.util.Map;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public interface TagValueAble {
 
     /**
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinition.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinition.java
index d54a9c1..7255ee1 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinition.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinition.java
@@ -47,6 +47,7 @@ import java.lang.annotation.Target;
  */
 @Target(ElementType.FIELD)
 @Retention(RetentionPolicy.RUNTIME)
+@Deprecated
 public @interface TagValueDefinition {
 
     /**
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProvider.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProvider.java
index 7778b60..2d9284f 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProvider.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProvider.java
@@ -65,6 +65,7 @@ import java.util.TreeMap;
  * @see EugeneTagValues
  * @since 2.9
  */
+@Deprecated
 public class TagValueDefinitionProvider {
 
     /** Logger. */
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProviderManagerExtension.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProviderManagerExtension.java
index 4c9f04d..8817e8d 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProviderManagerExtension.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProviderManagerExtension.java
@@ -30,6 +30,7 @@ import com.google.common.base.Preconditions;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.11
  */
+@Deprecated
 public class TagValueDefinitionProviderManagerExtension {
 
     /**
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProviders.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProviders.java
index f834c82..efcb304 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProviders.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueDefinitionProviders.java
@@ -31,6 +31,7 @@ import org.apache.commons.logging.LogFactory;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class TagValueDefinitionProviders {
 
     /** Logger. */
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueNotFoundException.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueNotFoundException.java
index 118267f..7480ae6 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueNotFoundException.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValueNotFoundException.java
@@ -28,6 +28,7 @@ package org.nuiton.eugene.models.tagvalue;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class TagValueNotFoundException extends Exception {
 
     private static final long serialVersionUID = 1L;
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValues.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValues.java
index c64af9c..31e39b7 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValues.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/TagValues.java
@@ -38,6 +38,7 @@ import java.util.regex.Pattern;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class TagValues {
 
     /**
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/EqualsTagValueNameMatcher.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/EqualsTagValueNameMatcher.java
index b6fe7a7..82c7083 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/EqualsTagValueNameMatcher.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/EqualsTagValueNameMatcher.java
@@ -32,6 +32,7 @@ import java.util.Map;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class EqualsTagValueNameMatcher extends TagValueDefinitionMatcher {
 
     public EqualsTagValueNameMatcher(Map<String, TagValueDefinition> tagValueDefinitionMap) {
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/StartsWithTagNameMatcher.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/StartsWithTagNameMatcher.java
index 24b0643..2c30604 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/StartsWithTagNameMatcher.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/StartsWithTagNameMatcher.java
@@ -32,6 +32,7 @@ import java.util.Map;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public class StartsWithTagNameMatcher extends TagValueDefinitionMatcher {
 
     public StartsWithTagNameMatcher(Map<String, TagValueDefinition> tagValueDefinitionMap) {
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/TagValueDefinitionMatcher.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/TagValueDefinitionMatcher.java
index c899ce6..b765962 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/TagValueDefinitionMatcher.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/matcher/TagValueDefinitionMatcher.java
@@ -35,6 +35,7 @@ import java.util.Map;
  * @author Tony Chemit - chemit@codelutin.com
  * @since 2.9
  */
+@Deprecated
 public abstract class TagValueDefinitionMatcher {
 
     protected Map<String, TagValueDefinition> tagValueDefinitionMap;
diff --git a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/package-info.java b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/package-info.java
index 99b209f..ae63624 100644
--- a/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/package-info.java
+++ b/eugene/src/main/java/org/nuiton/eugene/models/tagvalue/package-info.java
@@ -27,5 +27,6 @@
  *
  * @since 2.9
  */
+@Deprecated
 package org.nuiton.eugene.models.tagvalue;
 
diff --git a/eugene/src/main/resolver-cache/META-INF/services/org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider b/eugene/src/main/resolver-cache/META-INF/services/org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider
new file mode 100644
index 0000000..c5380f2
--- /dev/null
+++ b/eugene/src/main/resolver-cache/META-INF/services/org.nuiton.eugene.models.extension.stereotype.provider.StereotypeMetadatasProvider
@@ -0,0 +1 @@
+org.nuiton.eugene.EugeneCoreStereotypes
\ No newline at end of file
diff --git a/eugene/src/main/resolver-cache/META-INF/services/org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider b/eugene/src/main/resolver-cache/META-INF/services/org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider
new file mode 100644
index 0000000..aa68615
--- /dev/null
+++ b/eugene/src/main/resolver-cache/META-INF/services/org.nuiton.eugene.models.extension.tagvalue.provider.TagValueMetadatasProvider
@@ -0,0 +1 @@
+org.nuiton.eugene.EugeneCoreTagValues
\ No newline at end of file
diff --git a/eugene/src/test/java/org/nuiton/eugene/EugeneCoreStereotypesTest.java b/eugene/src/test/java/org/nuiton/eugene/EugeneCoreStereotypesTest.java
new file mode 100644
index 0000000..fa1af5a
--- /dev/null
+++ b/eugene/src/test/java/org/nuiton/eugene/EugeneCoreStereotypesTest.java
@@ -0,0 +1,52 @@
+package org.nuiton.eugene;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.nuiton.eugene.models.extension.stereotype.MismatchStereotypeTargetException;
+import org.nuiton.eugene.models.extension.stereotype.StereotypeNotFoundException;
+import org.nuiton.eugene.models.object.ObjectModel;
+import org.nuiton.eugene.models.object.ObjectModelAttribute;
+import org.nuiton.eugene.models.object.ObjectModelClass;
+import org.nuiton.eugene.models.object.ObjectModelClassifier;
+import org.nuiton.eugene.models.object.ObjectModelEnumeration;
+import org.nuiton.eugene.models.object.ObjectModelInterface;
+import org.nuiton.eugene.models.object.ObjectModelOperation;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public class EugeneCoreStereotypesTest {
+
+    protected EugeneCoreStereotypes provider;
+
+    @Before
+    public void setUp() throws Exception {
+        provider = new EugeneCoreStereotypes();
+    }
+
+    @Test
+    public void validate() throws Exception {
+
+        validate(EugeneCoreStereotypes.Store.ordered.name(), true, ObjectModelAttribute.class);
+
+        validate(EugeneCoreStereotypes.Store.ordered.name(), false, ObjectModel.class, ObjectModelOperation.class, ObjectModelClassifier.class, ObjectModelClass.class, ObjectModelEnumeration.class, ObjectModelInterface.class);
+
+        long l = System.nanoTime();
+        validate(EugeneCoreStereotypes.Store.ordered.name() + l, false, ObjectModel.class, ObjectModelOperation.class, ObjectModelClassifier.class, ObjectModelClass.class, ObjectModelEnumeration.class, ObjectModelInterface.class);
+
+    }
+
+    protected void validate(String name, boolean expected, Class<?>... types) {
+        for (Class<?> type : types) {
+            try {
+                provider.validate(name, type);
+                Assert.assertTrue(expected);
+            } catch (StereotypeNotFoundException | MismatchStereotypeTargetException e) {
+                Assert.assertFalse(expected);
+            }
+        }
+    }
+}
diff --git a/eugene/src/test/java/org/nuiton/eugene/EugeneCoreTagValuesTest.java b/eugene/src/test/java/org/nuiton/eugene/EugeneCoreTagValuesTest.java
new file mode 100644
index 0000000..d694981
--- /dev/null
+++ b/eugene/src/test/java/org/nuiton/eugene/EugeneCoreTagValuesTest.java
@@ -0,0 +1,68 @@
+package org.nuiton.eugene;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.nuiton.eugene.models.extension.tagvalue.MismatchTagValueTargetException;
+import org.nuiton.eugene.models.extension.tagvalue.TagValueNotFoundException;
+import org.nuiton.eugene.models.object.ObjectModel;
+import org.nuiton.eugene.models.object.ObjectModelAttribute;
+import org.nuiton.eugene.models.object.ObjectModelClass;
+import org.nuiton.eugene.models.object.ObjectModelClassifier;
+import org.nuiton.eugene.models.object.ObjectModelEnumeration;
+import org.nuiton.eugene.models.object.ObjectModelOperation;
+import org.nuiton.eugene.models.object.ObjectModelPackage;
+import org.nuiton.eugene.models.object.xml.ObjectModelClassImpl;
+import org.nuiton.eugene.models.object.xml.ObjectModelImpl;
+import org.nuiton.eugene.models.object.xml.ObjectModelPackageImpl;
+
+/**
+ * Created on 24/09/16.
+ *
+ * @author Tony Chemit - chemit@codelutin.com
+ */
+public class EugeneCoreTagValuesTest {
+
+    protected EugeneCoreTagValues provider;
+
+    @Before
+    public void setUp() throws Exception {
+        provider = new EugeneCoreTagValues();
+    }
+
+    @Test
+    public void validate() throws Exception {
+        validate(EugeneCoreTagValues.Store.constantPrefix.getName(), true, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class, ObjectModelClass.class, ObjectModelEnumeration.class);
+        validate(EugeneCoreTagValues.Store.i18n.getName(), true, ObjectModel.class, ObjectModelPackage.class, ObjectModelClassifier.class, ObjectModelClass.class, ObjectModelEnumeration.class);
+        validate(EugeneCoreTagValues.Store.version.getName(), true, ObjectModel.class);
+
+        validate(EugeneCoreTagValues.Store.constantPrefix.getName(), false, ObjectModelOperation.class, ObjectModelAttribute.class);
+        validate(EugeneCoreTagValues.Store.i18n.getName(), false, ObjectModelOperation.class, ObjectModelAttribute.class);
+        validate(EugeneCoreTagValues.Store.version.getName(), false, ObjectModelPackage.class, ObjectModelClassifier.class, ObjectModelOperation.class, ObjectModelAttribute.class);
+
+        long l = System.nanoTime();
+        validate(EugeneCoreTagValues.Store.constantPrefix.getName() + l, false, ObjectModelOperation.class, ObjectModelPackage.class, ObjectModelAttribute.class);
+        validate(EugeneCoreTagValues.Store.i18n.getName() + l, false, ObjectModelOperation.class, ObjectModelPackage.class, ObjectModelAttribute.class);
+        validate(EugeneCoreTagValues.Store.version.getName() + l, false, ObjectModelClassifier.class, ObjectModelPackage.class, ObjectModelOperation.class, ObjectModelAttribute.class);
+    }
+
+    @Test
+    public void testDefaultValue() throws Exception {
+        Assert.assertEquals("PROPERTY_", provider.getConstantPrefixTagValue(new ObjectModelClassImpl(), new ObjectModelPackageImpl(), new ObjectModelImpl()));
+        Assert.assertEquals(false, provider.isGenerateBooleanGetMethods(new ObjectModelClassImpl(), new ObjectModelPackageImpl(), new ObjectModelImpl()));
+        // No default value
+        Assert.assertNull(provider.getI18nPrefixTagValue(new ObjectModelClassImpl(), new ObjectModelPackageImpl(), new ObjectModelImpl()));
+    }
+
+    protected void validate(String name, boolean expected, Class<?>... types) {
+        for (Class<?> type : types) {
+
+            try {
+                provider.validate(name, type);
+                Assert.assertTrue(expected);
+            } catch (TagValueNotFoundException | MismatchTagValueTargetException e) {
+                Assert.assertFalse(expected);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/eugene/src/test/java/org/nuiton/eugene/models/object/XMI21ToObjectModelTest.java b/eugene/src/test/java/org/nuiton/eugene/models/object/XMI21ToObjectModelTest.java
index ff87c25..73dddc2 100644
--- a/eugene/src/test/java/org/nuiton/eugene/models/object/XMI21ToObjectModelTest.java
+++ b/eugene/src/test/java/org/nuiton/eugene/models/object/XMI21ToObjectModelTest.java
@@ -25,7 +25,7 @@ package org.nuiton.eugene.models.object;
 import org.junit.BeforeClass;
 import org.junit.Ignore;
 import org.junit.Test;
-import org.nuiton.eugene.EugeneTagValues;
+import org.nuiton.eugene.EugeneCoreTagValues;
 import org.nuiton.eugene.TestHelper;
 import org.nuiton.eugene.models.object.reader.XmlObjectModelReader;
 import org.nuiton.util.FileUtil;
@@ -541,8 +541,7 @@ public class XMI21ToObjectModelTest {
     public void testTestXMI21Documentation() throws URISyntaxException, IOException,
             TransformerException {
 
-        EugeneTagValues eugeneTagValues = new EugeneTagValues();
-        eugeneTagValues.init();
+        EugeneCoreTagValues eugeneTagValues = new EugeneCoreTagValues();
 
         ObjectModel model = xmiToObjectModel("TestXMI21");
 

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[Eugene-commits] 01/01: Rethink stereotypes and tag values API (fixes #4042)

nuiton.org scm