Index: topia/src/java/org/codelutin/topia/AbstractTopiaElement.java
diff -u topia/src/java/org/codelutin/topia/AbstractTopiaElement.java:1.1 topia/src/java/org/codelutin/topia/AbstractTopiaElement.java:1.2
--- topia/src/java/org/codelutin/topia/AbstractTopiaElement.java:1.1	Thu Jul 15 13:19:30 2004
+++ topia/src/java/org/codelutin/topia/AbstractTopiaElement.java	Fri Jun 10 17:16:38 2005
@@ -23,17 +23,17 @@
  *
  * @author Benjamin Poussin <poussin@codelutin.com>
  * Copyright Code Lutin
- * @version $Revision: 1.1 $
+ * @version $Revision: 1.2 $
  *
- * Mise a jour: $Date: 2004/07/15 13:19:30 $
- * par : $Author: bpoussin $
+ * Mise a jour: $Date: 2005/06/10 17:16:38 $
+ * par : $Author: thimel $
  */
 
 package org.codelutin.topia;
 
 public abstract class AbstractTopiaElement implements TopiaElement { // AbstractTopiaElement
 
-     protected TopiaContext topiaContext;
+     transient protected TopiaContext topiaContext;
 
      public void setContext(TopiaContext topiaContext) throws TopiaException {
          this.topiaContext = topiaContext;

Index: topia/src/java/org/codelutin/topia/TopiaAssociationsManager.java
diff -u /dev/null topia/src/java/org/codelutin/topia/TopiaAssociationsManager.java:1.1
--- /dev/null	Fri Jun 10 17:16:43 2005
+++ topia/src/java/org/codelutin/topia/TopiaAssociationsManager.java	Fri Jun 10 17:16:38 2005
@@ -0,0 +1,90 @@
+/* *##%
+* 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.
+*##%*/
+
+/* *
+* TopiaAssociationsManager.java
+*
+* Created: 9 juin 2005
+*
+* @author Arnaud Thimel <thimel@codelutin.com>
+* @version $Revision: 1.1 $
+*/
+
+
+package org.codelutin.topia;
+
+import java.util.Hashtable;
+import java.util.Iterator;
+import java.util.List;
+
+import org.codelutin.util.HashMapMultiKey;
+
+
+public class TopiaAssociationsManager {
+
+    Hashtable associations;
+    
+    public TopiaAssociationsManager() {
+        associations = new Hashtable();
+    }
+
+    public void createAssociation(String associationName) {
+        if (associations.get(associationName) == null)
+            associations.put( associationName, new HashMapMultiKey());
+    }
+
+    public HashMapMultiKey getAssociation(String associationName) {
+        return (HashMapMultiKey)associations.get(associationName);
+    }
+
+    public List getKeys(String associationName, Object partOfKey) {
+        HashMapMultiKey assocMap = (HashMapMultiKey)associations.get(associationName);
+        if (assocMap == null)
+            return null;
+        return assocMap.getKeys(partOfKey);
+    }
+
+    public Object getAssociationClass(String associationName, HashMapMultiKey.Key key) {
+        HashMapMultiKey assocMap = (HashMapMultiKey)associations.get(associationName);
+        if (assocMap == null)
+            return null;
+        return assocMap.get(key);
+    }
+    
+    public List getKeysForPosition(String associationName, Object partOfKey, int pos) {
+        List keys = getKeys(associationName, partOfKey);
+        for (Iterator it = keys.iterator(); it.hasNext(); ) {
+            HashMapMultiKey.Key key = (HashMapMultiKey.Key)it.next();
+            if ((pos >= key.size()) || (!key.get(pos).equals(partOfKey)))
+                keys.remove(key);
+        }
+        return keys;
+    }
+
+    public int numberInPosition(String associationName, Object partOfKey, int pos) {
+        int number = 0;
+        for (Iterator it = getKeys(associationName, partOfKey).iterator(); it.hasNext(); ) {
+            HashMapMultiKey.Key key = (HashMapMultiKey.Key)it.next();
+            if ((pos < key.size()) || (key.get(pos).equals(partOfKey)))
+                number++;
+        }
+        return number;
+    }
+}