Index: topia2/src/java/org/codelutin/topia/generator/TopiaMetaGenerator.java
diff -u topia2/src/java/org/codelutin/topia/generator/TopiaMetaGenerator.java:1.3 topia2/src/java/org/codelutin/topia/generator/TopiaMetaGenerator.java:1.4
--- topia2/src/java/org/codelutin/topia/generator/TopiaMetaGenerator.java:1.3	Thu Mar  9 10:39:22 2006
+++ topia2/src/java/org/codelutin/topia/generator/TopiaMetaGenerator.java	Fri Mar 31 18:11:56 2006
@@ -24,9 +24,9 @@
  * @author Grégoire DESSARD <dessard@codelutin.com> Copyright Code Lutin, Grégoire
  * Dessard
  * 
- * @version $Revision: 1.3 $
+ * @version $Revision: 1.4 $
  * 
- * Mise a jour: $Date: 2006/03/09 10:39:22 $ par : $Author: thimel $
+ * Mise a jour: $Date: 2006/03/31 18:11:56 $ par : $Author: thimel $
  */
 
 package org.codelutin.topia.generator;
@@ -63,6 +63,8 @@
         classValidator.addNameAndReason("constraint", "Nom de classe incompatible avec certains SGBD");
         validators.add(classValidator);
 
+        validators.add(new TopiaRelationValidator(model));
+
         boolean isValid = true;
         for (ObjectModelValidator validator : validators) {
             if (!validator.validate()) {

Index: topia2/src/java/org/codelutin/topia/generator/TopiaRelationValidator.java
diff -u /dev/null topia2/src/java/org/codelutin/topia/generator/TopiaRelationValidator.java:1.1
--- /dev/null	Fri Mar 31 18:12:01 2006
+++ topia2/src/java/org/codelutin/topia/generator/TopiaRelationValidator.java	Fri Mar 31 18:11:56 2006
@@ -0,0 +1,116 @@
+/* *##%
+* Copyright (C) 2002, 2003, 2004, 2005 Code Lutin,
+*    Cédric Pineau, Benjamin Poussin,
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 2
+* 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 Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*##%*/
+
+/* *
+* TopiaRelationValidator.java
+*
+* Created: 31 mars 2006
+*
+* @author Arnaud Thimel <thimel@codelutin.com>
+* @version $Revision$
+*
+* Mise a jour: $Date$
+* par : $Author$
+*/
+
+
+package org.codelutin.topia.generator;
+
+import java.util.Iterator;
+
+import org.codelutin.generator.models.object.ObjectModel;
+import org.codelutin.generator.models.object.ObjectModelAttribute;
+import org.codelutin.generator.models.object.ObjectModelClass;
+import org.codelutin.generator.models.object.validator.ObjectModelValidator;
+
+/**
+ * Validateur pour les relations du modèle.
+ * Vérifie que :
+ * <ul>
+ *   <li>Toutes les relations ont au moins une navigabilité</li>
+ *   <li>Une relation 1-n unidirectionnelle pointant sur une classe ayant des
+ *   sous-classes dans le modèle est incompatibe avec Hibernate</li>
+ * </ul>
+ */
+public class TopiaRelationValidator extends ObjectModelValidator {
+
+    /**
+     * Constructeur de TopiaRelationValidator
+     * @param model le modèle à valider
+     */
+    public TopiaRelationValidator(ObjectModel model) {
+        super(model);
+    }
+
+    /* (non-Javadoc)
+     * @see org.codelutin.generator.models.object.validator.ObjectModelValidator#validateAttribute(org.codelutin.generator.models.object.ObjectModelAttribute)
+     */
+    @Override
+    protected boolean validateAttribute(ObjectModelAttribute attr) {
+        boolean isValid = true;
+        ObjectModelAttribute reverse = attr.getReverseAttribute(); 
+
+        /* Relation navigabilité */
+        //Pour ne pas avoir de doublons, on ne vérifie que sur le premier
+        //attribut par ordre alphabétique
+        if (GeneratorUtil.isFirstAttribute(attr)) {
+            if (!attr.isNavigable() && !reverse.isNavigable()) {
+                addError(attr,
+                    "La relation entre " +
+                    "\"" + reverse.getType() + "\"[" + attr.getName() + "] et "+
+                    "\"" + attr.getType() + "\"[" + reverse.getName() + "] " +
+                    "n'est navigable dans aucun sens");
+                isValid = false;
+            }
+        }
+
+        /* Relation héritage */
+        //Relation 1-n
+        if (reverse != null && GeneratorUtil.isNMultiplicity(attr) &&
+                !GeneratorUtil.isNMultiplicity(reverse)) {
+            //Pas de navigabilité
+            if (!reverse.isNavigable()) {
+                //Il s'agit d'une entity
+                ObjectModelClass clazz = model.getClass(attr.getType());
+                if (clazz != null && clazz.hasStereotype(GeneratorUtil.STEREOTYPE_ENTITY)) {
+                    //Cette classe a des sous-classes dans le modèle
+                    Iterator subClasses = model.getClasses().iterator();
+                    while (subClasses.hasNext()) {
+                        ObjectModelClass subClass = (ObjectModelClass)subClasses.next();
+                        if (subClass.getSuperclasses().contains(clazz)) {
+                            addError(attr,
+                                    "La relation entre " +
+                                    "\"" + reverse.getType() + "\"[" + attr.getName() + "] et "+
+                                    "\"" + attr.getType() + "\"[" + reverse.getName() + "] " +
+                                    "n'est pas compatible avec Hibernate car:\n" +
+                                    "1. La relation est 1-n et n'est navigable que dans un sens;\n" +
+                                    "2. \"" + attr.getType() + "\" a des sous-classes.");
+                            isValid = false;
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+
+        return isValid;
+    }
+
+} //TopiaRelationValidator