/*******************************************************************************
* 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.ListChangeEvent;
import org.eclipse.persistence.tools.workbench.utility.events.ListChangeListener;
/**
* Extend ValueAspectPropertyValueModelAdapter to listen to one or more list
* aspects of the value in the wrapped value model.
*/
public class ValueListPropertyValueModelAdapter
extends ValueAspectPropertyValueModelAdapter
{
/** The names of the value's lists that we listen to. */
protected final String[] listNames;
/** Listener that listens to the value. */
protected ListChangeListener valueListListener;
// ********** constructors **********
/**
* Construct an adapter for the specified value list.
*/
public ValueListPropertyValueModelAdapter(PropertyValueModel valueHolder, String listName) {
this(valueHolder, new String[] {listName});
}
/**
* Construct an adapter for the specified value lists.
*/
public ValueListPropertyValueModelAdapter(PropertyValueModel valueHolder, String listName1, String listName2) {
this(valueHolder, new String[] {listName1, listName2});
}
/**
* Construct an adapter for the specified value lists.
*/
public ValueListPropertyValueModelAdapter(PropertyValueModel valueHolder, String listName1, String listName2, String listName3) {
this(valueHolder, new String[] {listName1, listName2, listName3});
}
/**
* Construct an adapter for the specified value lists.
*/
public ValueListPropertyValueModelAdapter(PropertyValueModel valueHolder, String[] listNames) {
super(valueHolder);
this.listNames = listNames;
}
// ********** initialization **********
protected void initialize() {
super.initialize();
this.valueListListener = this.buildValueListListener();
}
/**
* All we really care about is the fact that a List aspect has
* changed. Do the same thing no matter which event occurs.
*/
protected ListChangeListener buildValueListListener() {
return new ListChangeListener() {
public void itemsAdded(ListChangeEvent e) {
ValueListPropertyValueModelAdapter.this.valueAspectChanged();
}
public void itemsRemoved(ListChangeEvent e) {
ValueListPropertyValueModelAdapter.this.valueAspectChanged();
}
public void itemsReplaced(ListChangeEvent e) {
ValueListPropertyValueModelAdapter.this.valueAspectChanged();
}
public void listChanged(ListChangeEvent e) {
ValueListPropertyValueModelAdapter.this.valueAspectChanged();
}
public String toString() {
return "value list listener: " + Arrays.asList(ValueListPropertyValueModelAdapter.this.listNames);
}
};
}
protected void startListeningToValue() {
Model v = (Model) this.value;
for (int i = this.listNames.length; i-- > 0; ) {
v.addListChangeListener(this.listNames[i], this.valueListListener);
}
}
protected void stopListeningToValue() {
Model v = (Model) this.value;
for (int i = this.listNames.length; i-- > 0; ) {
v.removeListChangeListener(this.listNames[i], this.valueListListener);
}
}
}