| /******************************************************************************* |
| * Copyright (c) 2007, 2012 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.common.utility.internal.model.value; |
| |
| import java.util.Arrays; |
| |
| import org.eclipse.jpt.common.utility.model.Model; |
| import org.eclipse.jpt.common.utility.model.event.ListAddEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListChangeEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListClearEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListMoveEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListRemoveEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListReplaceEvent; |
| import org.eclipse.jpt.common.utility.model.listener.ListChangeListener; |
| import org.eclipse.jpt.common.utility.model.value.ModifiablePropertyValueModel; |
| |
| /** |
| * Extend {@link ValueAspectAdapter} to listen to one or more list |
| * aspects of the value in the wrapped value model. |
| */ |
| public class ValueListAdapter<V extends Model> |
| extends ValueAspectAdapter<V> |
| { |
| /** The names of the value's lists that we listen to. */ |
| protected final String[] listNames; |
| |
| /** Listener that listens to the value. */ |
| protected final ListChangeListener valueListListener; |
| |
| |
| // ********** constructors ********** |
| |
| /** |
| * Construct an adapter for the specified value lists. |
| */ |
| public ValueListAdapter(ModifiablePropertyValueModel<V> valueHolder, String... listNames) { |
| super(valueHolder); |
| this.listNames = listNames; |
| this.valueListListener = this.buildValueListListener(); |
| } |
| |
| |
| // ********** initialization ********** |
| |
| protected ListChangeListener buildValueListListener() { |
| return new ListChangeListener() { |
| public void itemsAdded(ListAddEvent event) { |
| ValueListAdapter.this.itemsAdded(event); |
| } |
| public void itemsRemoved(ListRemoveEvent event) { |
| ValueListAdapter.this.itemsRemoved(event); |
| } |
| public void itemsReplaced(ListReplaceEvent event) { |
| ValueListAdapter.this.itemsReplaced(event); |
| } |
| public void itemsMoved(ListMoveEvent event) { |
| ValueListAdapter.this.itemsMoved(event); |
| } |
| public void listCleared(ListClearEvent event) { |
| ValueListAdapter.this.listCleared(event); |
| } |
| public void listChanged(ListChangeEvent event) { |
| ValueListAdapter.this.listChanged(event); |
| } |
| @Override |
| public String toString() { |
| return "value list listener: " + Arrays.asList(ValueListAdapter.this.listNames); //$NON-NLS-1$ |
| } |
| }; |
| } |
| |
| |
| // ********** ValueAspectAdapter implementation ********** |
| |
| @Override |
| protected void engageValue_() { |
| for (String listName : this.listNames) { |
| this.value.addListChangeListener(listName, this.valueListListener); |
| } |
| } |
| |
| @Override |
| protected void disengageValue_() { |
| for (String listName : this.listNames) { |
| this.value.removeListChangeListener(listName, this.valueListListener); |
| } |
| } |
| |
| |
| // ********** change events ********** |
| |
| protected void itemsAdded(@SuppressWarnings("unused") ListAddEvent event) { |
| this.valueAspectChanged(); |
| } |
| |
| protected void itemsRemoved(@SuppressWarnings("unused") ListRemoveEvent event) { |
| this.valueAspectChanged(); |
| } |
| |
| protected void itemsReplaced(@SuppressWarnings("unused") ListReplaceEvent event) { |
| this.valueAspectChanged(); |
| } |
| |
| protected void itemsMoved(@SuppressWarnings("unused") ListMoveEvent event) { |
| this.valueAspectChanged(); |
| } |
| |
| protected void listCleared(@SuppressWarnings("unused") ListClearEvent event) { |
| this.valueAspectChanged(); |
| } |
| |
| protected void listChanged(@SuppressWarnings("unused") ListChangeEvent event) { |
| this.valueAspectChanged(); |
| } |
| |
| } |