| /******************************************************************************* |
| * Copyright (c) 2009 Oracle. All rights reserved. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v1.0, which accompanies this distribution |
| * and is available at http://www.eclipse.org/legal/epl-v10.html. |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.utility.internal.model.value; |
| |
| import org.eclipse.jpt.utility.model.Model; |
| import org.eclipse.jpt.utility.model.event.ChangeEvent; |
| import org.eclipse.jpt.utility.model.listener.ChangeListener; |
| import org.eclipse.jpt.utility.model.listener.SimpleChangeListener; |
| import org.eclipse.jpt.utility.model.value.ListValueModel; |
| |
| /** |
| * Extend {@link ItemAspectListValueModelAdapter} to listen to all of the changes |
| * of each item in the wrapped list model. |
| */ |
| public class ItemChangeListValueModelAdapter<E> |
| extends ItemAspectListValueModelAdapter<E> |
| { |
| /** Listener that listens to all the items in the list. */ |
| protected final ChangeListener itemChangeListener; |
| |
| |
| // ********** constructors ********** |
| |
| /** |
| * Construct an adapter for the specified items. |
| */ |
| public ItemChangeListValueModelAdapter(ListValueModel<E> listHolder) { |
| super(listHolder); |
| this.itemChangeListener = this.buildItemChangeListener(); |
| } |
| |
| |
| // ********** initialization ********** |
| |
| protected ChangeListener buildItemChangeListener() { |
| return new SimpleChangeListener() { |
| @Override |
| protected void modelChanged(ChangeEvent event) { |
| ItemChangeListValueModelAdapter.this.itemAspectChanged(event); |
| } |
| @Override |
| public String toString() { |
| return "item change listener"; //$NON-NLS-1$ |
| } |
| }; |
| } |
| |
| |
| // ********** behavior ********** |
| |
| @Override |
| protected void engageItem_(Model item) { |
| item.addChangeListener(this.itemChangeListener); |
| } |
| |
| @Override |
| protected void disengageItem_(Model item) { |
| item.removeChangeListener(this.itemChangeListener); |
| } |
| |
| } |