/*
* 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 1997-2000 Sun
* Microsystems, Inc. All Rights Reserved.
*/
package org.openide.nodes;
/** Listener to special changes in <code>Node</code>s. Is a property
* change listener so that all changes in properties in the {@link Node node} can be fired
* in the usual way.
* <P>
* Methods childrenAdded, childrenRemoved and childrenReordered are called
* with Children.MUTEX.writeAccess which guarantees that no other thread
* can change the hierarchy during that time, but also requires proper
* implementation of all NodeListeners which should avoid calls
* to other threads which might require access
* to Children.MUTEX due to changes nodes hierarchy or do any other kind of
* starvation.
*
*
* @author Jaroslav Tulach
*/
public interface NodeListener extends java.beans.PropertyChangeListener {
/** Fired when a set of new children is added.
* @param ev event describing the action
*/
public void childrenAdded (NodeMemberEvent ev);
/** Fired when a set of children is removed.
* @param ev event describing the action
*/
public void childrenRemoved (NodeMemberEvent ev);
/** Fired when the order of children is changed.
* @param ev event describing the change
*/
public void childrenReordered(NodeReorderEvent ev);
/** Fired when the node is deleted.
* @param ev event describing the node
*/
public void nodeDestroyed (NodeEvent ev);
}