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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;
/**
* This interface allows a client to better control the performance of
* a combo box model by allowing the client to specify when it is
* acceptable for the model to "cache" and "uncache" its list of elements.
* The model may ignore these hints if appropriate.
*/
public interface CachingComboBoxModel extends ComboBoxModel {
/**
* Cache the comboBoxModel List. If you call this, you
* must make sure to call uncacheList() as well. Otherwise
* stale data will be in the ComboBox until cacheList() is
* called again or uncacheList() is called.
*/
void cacheList();
/**
* Clear the cached list. Next time the list is needed it will
* be built when it is not cached.
*/
void uncacheList();
/**
* Check to see if the list is already cached. This can be used for
* MouseEvents, since they are not terribly predictable.
*/
boolean isCached();
}
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