/*******************************************************************************
* Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.uitools.app;
import java.util.Arrays;
import org.eclipse.persistence.tools.workbench.utility.Model;
import org.eclipse.persistence.tools.workbench.utility.events.CollectionChangeEvent;
import org.eclipse.persistence.tools.workbench.utility.events.CollectionChangeListener;
/**
* Extend ItemAspectListValueModelAdapter to listen to one or more collection
* aspects of each item in the wrapped list model.
*/
public class ItemCollectionListValueModelAdapter extends ItemAspectListValueModelAdapter {
/** The names of the items' collections that we listen to. */
protected final String[] collectionNames;
/** Listener that listens to all the items in the list. */
protected CollectionChangeListener itemCollectionListener;
// ********** constructors **********
/**
* Construct an adapter for the specified item Collection.
*/
public ItemCollectionListValueModelAdapter(ListValueModel listHolder, String collectionName) {
this(listHolder, new String[] {collectionName});
}
/**
* Construct an adapter for the specified item Collections.
*/
public ItemCollectionListValueModelAdapter(ListValueModel listHolder, String collectionName1, String collectionName2) {
this(listHolder, new String[] {collectionName1, collectionName2});
}
/**
* Construct an adapter for the specified item Collections.
*/
public ItemCollectionListValueModelAdapter(ListValueModel listHolder, String collectionName1, String collectionName2, String collectionName3) {
this(listHolder, new String[] {collectionName1, collectionName2, collectionName3});
}
/**
* Construct an adapter for the specified item Collections.
*/
public ItemCollectionListValueModelAdapter(ListValueModel listHolder, String[] collectionNames) {
super(listHolder);
this.collectionNames = collectionNames;
}
/**
* Construct an adapter for the specified item Collections.
*/
public ItemCollectionListValueModelAdapter(CollectionValueModel collectionHolder, String collectionName) {
this(collectionHolder, new String[] {collectionName});
}
/**
* Construct an adapter for the specified item Collections.
*/
public ItemCollectionListValueModelAdapter(CollectionValueModel collectionHolder, String collectionName1, String collectionName2) {
this(collectionHolder, new String[] {collectionName1, collectionName2});
}
/**
* Construct an adapter for the specified item Collections.
*/
public ItemCollectionListValueModelAdapter(CollectionValueModel collectionHolder, String collectionName1, String collectionName2, String collectionName3) {
this(collectionHolder, new String[] {collectionName1, collectionName2, collectionName3});
}
/**
* Construct an adapter for the specified item Collections.
*/
public ItemCollectionListValueModelAdapter(CollectionValueModel collectionHolder, String[] collectionNames) {
super(collectionHolder);
this.collectionNames = collectionNames;
}
// ********** initialization **********
protected void initialize() {
super.initialize();
this.itemCollectionListener = this.buildItemCollectionListener();
}
/**
* All we really care about is the fact that a Collection aspect has
* changed. Do the same thing no matter which event occurs.
*/
protected CollectionChangeListener buildItemCollectionListener() {
return new CollectionChangeListener() {
public void itemsAdded(CollectionChangeEvent e) {
ItemCollectionListValueModelAdapter.this.itemAspectChanged(e);
}
public void itemsRemoved(CollectionChangeEvent e) {
ItemCollectionListValueModelAdapter.this.itemAspectChanged(e);
}
public void collectionChanged(CollectionChangeEvent e) {
ItemCollectionListValueModelAdapter.this.itemAspectChanged(e);
}
public String toString() {
return "item collection listener: " + Arrays.asList(ItemCollectionListValueModelAdapter.this.collectionNames);
}
};
}
// ********** behavior **********
/**
* @see ItemAspectListValueModelAdapter#listenToItem(org.eclipse.persistence.tools.workbench.utility.Model)
*/
protected void startListeningToItem(Model item) {
for (int i = this.collectionNames.length; i-- > 0; ) {
item.addCollectionChangeListener(this.collectionNames[i], this.itemCollectionListener);
}
}
/**
* @see ItemAspectListValueModelAdapter#stopListeningToItem(org.eclipse.persistence.tools.workbench.utility.Model)
*/
protected void stopListeningToItem(Model item) {
for (int i = this.collectionNames.length; i-- > 0; ) {
item.removeCollectionChangeListener(this.collectionNames[i], this.itemCollectionListener);
}
}
}