Index: topia2/src/java/org/codelutin/topia/persistence/TopiaEntityAbstract.java
diff -u topia2/src/java/org/codelutin/topia/persistence/TopiaEntityAbstract.java:1.9 topia2/src/java/org/codelutin/topia/persistence/TopiaEntityAbstract.java:1.10
--- topia2/src/java/org/codelutin/topia/persistence/TopiaEntityAbstract.java:1.9	Wed Aug 30 14:59:04 2006
+++ topia2/src/java/org/codelutin/topia/persistence/TopiaEntityAbstract.java	Mon Sep 25 13:20:57 2006
@@ -23,19 +23,26 @@
  * 
  * @author poussin
  * 
- * @version $Revision: 1.9 $
+ * @version $Revision: 1.10 $
  * 
- * Last update: $Date: 2006/08/30 14:59:04 $ by : $Author: bpoussin $
+ * Last update: $Date: 2006/09/25 13:20:57 $ by : $Author: ruchaud $
  */
 
 package org.codelutin.topia.persistence;
 
+import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.beans.PropertyChangeSupport;
+import java.beans.PropertyVetoException;
+import java.beans.VetoableChangeListener;
+import java.beans.VetoableChangeSupport;
 import java.util.Date;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.codelutin.topia.TopiaContext;
 import org.codelutin.topia.TopiaException;
+import org.codelutin.topia.event.PropertyReadEvent;
 import org.codelutin.topia.framework.TopiaContextImplementor;
 
 /**
@@ -48,6 +55,9 @@
  */
 public abstract class TopiaEntityAbstract implements TopiaEntity {
 
+    /** to use log facility, just put in your code: log.info(\"...\"); */
+    static private Log log = LogFactory.getLog(TopiaEntityAbstract.class);
+
     protected String topiaId;
 
     protected long topiaVersion;
@@ -56,7 +66,13 @@
 
     transient protected TopiaContext topiaContext = null;
 
-    transient protected PropertyChangeSupport propertyChangeSupport = 
+    transient protected VetoableChangeSupport vetoableChangeSupport = 
+        new VetoableChangeSupport(this);
+
+    transient protected VetoableChangeSupport vetoableReadSupport = 
+        new VetoableChangeSupport(this);
+
+   transient protected PropertyChangeSupport propertyChangeSupport = 
         new PropertyChangeSupport(this);
 
     transient private boolean inPreloaded = false;
@@ -237,6 +253,51 @@
             //FIXME vérifier que this.getClass() renvoie bien la bonne class et corriger sinon
         }
     }
+    
+    protected void fireOnModifyVetoable(String propertyName, Object oldValue, Object newValue) {
+        PropertyChangeEvent event = new PropertyChangeEvent(this, propertyName, oldValue, newValue);
+        try {
+            vetoableChangeSupport.fireVetoableChange(event);
+        } catch (PropertyVetoException eee) {
+            if (log.isWarnEnabled()) {
+                log.warn("Can't call fireOnModifyVetoable for this entity : " + this, eee);
+            }
+        }
+    }
+    
+    protected <T> T fireOnReadVetoable(String propertyName, T value) {
+        T result = value;
+        PropertyReadEvent event = new PropertyReadEvent(this, propertyName, value);
+        try {
+            vetoableReadSupport.fireVetoableChange(event);
+            if (event.getNewValue() != PropertyReadEvent.NOT_CHANGE) {
+                result = (T)event.getNewValue();
+            }
+        } catch (PropertyVetoException eee) {
+            if (log.isWarnEnabled()) {
+                log.warn("Can't call fireOnReadVetoable for this entity : " + this, eee);
+            }
+        }
+        return result;
+    }
+    
+    public void addVetoableChangeListener(String propertyName,
+            VetoableChangeListener listener) {
+        vetoableChangeSupport.addVetoableChangeListener(propertyName, listener);
+    }
+
+    public void addVetoableChangeListener(VetoableChangeListener listener) {
+        vetoableChangeSupport.addVetoableChangeListener(listener);
+    }
+
+    public void addVetoableReadListener(String propertyName,
+            VetoableChangeListener listener) {
+        vetoableReadSupport.addVetoableChangeListener(propertyName, listener);
+    }
+
+    public void addVetoableReadListener(VetoableChangeListener listener) {
+        vetoableReadSupport.addVetoableChangeListener(listener);
+    }
 
     public void addPropertyListener(String propertyName,
             PropertyChangeListener listener) {
@@ -247,6 +308,26 @@
         propertyChangeSupport.addPropertyChangeListener(listener);
     }
 
+    public void removeVetoableReadListener(String propertyName,
+            VetoableChangeListener listener) {
+        vetoableReadSupport.removeVetoableChangeListener(propertyName,
+                listener);
+    }
+
+    public void removeVetoableReadListener(VetoableChangeListener listener) {
+        vetoableReadSupport.removeVetoableChangeListener(listener);
+    }
+
+    public void removeVetoableChangeListener(String propertyName,
+            VetoableChangeListener listener) {
+        vetoableChangeSupport.removeVetoableChangeListener(propertyName,
+                listener);
+    }
+
+    public void removeVetoableChangeListener(VetoableChangeListener listener) {
+        vetoableChangeSupport.removeVetoableChangeListener(listener);
+    }
+
     public void removePropertyListener(String propertyName,
             PropertyChangeListener listener) {
         propertyChangeSupport.removePropertyChangeListener(propertyName,