Index: lutinutil/src/java/org/codelutin/util/TransformedList.java
diff -u /dev/null lutinutil/src/java/org/codelutin/util/TransformedList.java:1.1
--- /dev/null	Tue Aug  2 12:54:40 2005
+++ lutinutil/src/java/org/codelutin/util/TransformedList.java	Tue Aug  2 12:54:35 2005
@@ -0,0 +1,110 @@
+/* *##%
+ * Copyright (C) 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.
+ *##%*/
+
+/* *
+ * TransformedList.java
+ *
+ * Created: 2 août 2005 02:12:42 CEST
+ *
+ * @author Benjamin POUSSIN <poussin@codelutin.com>
+ * @version $Revision: 1.1 $
+ *
+ * Last update: $Date: 2005/08/02 12:54:35 $
+ * by : $Author: bpoussin $
+ */
+
+package org.codelutin.util;
+
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+import java.util.AbstractList;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+public class TransformedList<E> extends AbstractList<E> implements Serializable { // TransformedList
+
+    // private static final long serialVersionUID = ;
+
+    /** to use log facility, just put in your code: log.info(\"...\"); */
+    static private Log log = LogFactory.getLog(TransformedList.class);
+
+    protected Transformer transformer = null;
+    protected List inner = null;
+
+    public TransformedList(Transformer transformer){
+        if(transformer == null){
+            throw new IllegalArgumentException("Transformer must not be null");
+        } else {
+            this.transformer = transformer;
+            this.inner = new ArrayList();
+        }
+    }
+
+    public TransformedList(Transformer transformer, Collection<? extends E> c){
+        this(transformer);
+        addAll(c);
+    }
+
+    public int size(){
+        return inner.size();
+    }
+
+    public E get(int index){
+        Object f = inner.get(index);
+        E result = (E)transformer.untranform(f);
+        return result;
+    }
+
+    public E set(int index, E element){
+        Object f = transformer.transform(element);
+        f = inner.set(index, f);
+        E result = (E)transformer.untranform(f);
+        return result;
+    }
+
+    public void add(int index, E element){
+        Object f = transformer.transform(element);
+        inner.add(index, f);
+    }
+
+    public E remove(int index) {
+        Object f = inner.remove(index);
+        E result = (E)transformer.untranform(f);
+        return result;
+    }
+
+    private void writeObject(ObjectOutputStream out) throws IOException {
+        out.defaultWriteObject();
+        out.writeObject(transformer);
+        out.writeObject(inner);
+    }
+
+    private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
+        in.defaultReadObject();
+        transformer = (Transformer)in.readObject();
+        inner = (List)in.readObject();
+    }
+
+} // TransformedList
+

Index: lutinutil/src/java/org/codelutin/util/Transformer.java
diff -u /dev/null lutinutil/src/java/org/codelutin/util/Transformer.java:1.1
--- /dev/null	Tue Aug  2 12:54:41 2005
+++ lutinutil/src/java/org/codelutin/util/Transformer.java	Tue Aug  2 12:54:35 2005
@@ -0,0 +1,45 @@
+/* *##%
+ * Copyright (C) 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.
+ *##%*/
+
+/* *
+ * Transformer.java
+ *
+ * Created: 2 août 2005 02:55:41 CEST
+ *
+ * @author Benjamin POUSSIN <poussin@codelutin.com>
+ * @version $Revision: 1.1 $
+ *
+ * Last update: $Date: 2005/08/02 12:54:35 $
+ * by : $Author: bpoussin $
+ */
+
+package org.codelutin.util;
+
+import java.io.Serializable;
+
+/**
+* Permet de transformer un objet en un autre et inversement
+*/
+public interface Transformer<E,F> implements Serializable { // Transformer
+
+    public F transform(E e);
+    public E untransform(F f);
+
+} // Transformer
+