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/*******************************************************************************
* Copyright (c) 2007 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.swing;
import javax.swing.ComboBoxModel;
import javax.swing.event.ListDataListener;
/**
* This implementation of the CachingComboBoxModel interface can be used
* whenever there is no need for caching (i.e. the contents of the selection
* list can be generated with little latency). All the normal ComboBoxModel
* behavior is delegated to a client-supplied ComboBoxModel.
*/
public class NonCachingComboBoxModel implements CachingComboBoxModel {
private ComboBoxModel wrappedComboBoxModel;
public NonCachingComboBoxModel(ComboBoxModel wrappedComboBoxModel) {
this.wrappedComboBoxModel = wrappedComboBoxModel;
}
// ********** CachingComboBoxModel implementation **********
public void cacheList() {
//do nothing
}
public void uncacheList() {
//do nothing
}
public boolean isCached() {
return false;
}
// ********** ComboBoxModel implementation **********
public void setSelectedItem(Object anItem) {
this.wrappedComboBoxModel.setSelectedItem(anItem);
}
public Object getSelectedItem() {
return this.wrappedComboBoxModel.getSelectedItem();
}
// ********** ListModel implementation **********
public int getSize() {
return this.wrappedComboBoxModel.getSize();
}
public Object getElementAt(int index) {
return this.wrappedComboBoxModel.getElementAt(index);
}
public void addListDataListener(ListDataListener l) {
this.wrappedComboBoxModel.addListDataListener(l);
}
public void removeListDataListener(ListDataListener l) {
this.wrappedComboBoxModel.removeListDataListener(l);
}
}
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