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The source code/* * Sun Public License Notice * * The contents of this file are subject to the Sun Public License * Version 1.0 (the "License"). You may not use this file except in * compliance with the License. A copy of the License is available at * http://www.sun.com/ * * The Original Code is NetBeans. The Initial Developer of the Original * Code is Sun Microsystems, Inc. Portions Copyright 1997-2002 Sun * Microsystems, Inc. All Rights Reserved. */ package org.netbeans.tax.event; import java.beans.PropertyChangeListener; /** * * @author Libor Kramolis * @version 0.1 */ public interface TreeEventModel { /** Add a PropertyChangeListener to the listener list. * @param listener The listener to add. */ public void addPropertyChangeListener (PropertyChangeListener listener); /** Removes a PropertyChangeListener from the listener list. * @param listener The listener to remove. */ public void removePropertyChangeListener (PropertyChangeListener listener); /** Add a PropertyChangeListener for a specific property to the listener list. * @param propertyname Name of the property to listen on. * @param listener The listener to add. */ public void addPropertyChangeListener (String propertyName, PropertyChangeListener listener); /** Removes a PropertyChangeListener for a specific property from the listener list. * @param propertyname Name of the property that was listened on. * @param listener The listener to remove. */ public void removePropertyChangeListener (String propertyName, PropertyChangeListener listener); /** * Check if there are any listeners for a specific property. * * @param propertyName the property name. * @return true if there are ore or more listeners for the given property */ public boolean hasPropertyChangeListeners (String propertyName); } |
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