/* * @(#)TreeModelListener.java 1.17 03/12/19 * * Copyright 2004 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package javax.swing.event; import java.util.EventListener; /** * Defines the interface for an object that listens * to changes in a TreeModel. * For further information and examples see * How to Write a Tree Model Listener, * a section in The Java Tutorial. * * @version 1.17 12/19/03 * @author Rob Davis * @author Ray Ryan */ public interface TreeModelListener extends EventListener { /** *
Invoked after a node (or a set of siblings) has changed in some * way. The node(s) have not changed locations in the tree or * altered their children arrays, but other attributes have * changed and may affect presentation. Example: the name of a * file has changed, but it is in the same location in the file * system.
*To indicate the root has changed, childIndices and children * will be null.
* *Use e.getPath()
* to get the parent of the changed node(s).
* e.getChildIndices()
* returns the index(es) of the changed node(s).
Invoked after nodes have been inserted into the tree.
* *Use e.getPath()
* to get the parent of the new node(s).
* e.getChildIndices()
* returns the index(es) of the new node(s)
* in ascending order.
Invoked after nodes have been removed from the tree. Note that * if a subtree is removed from the tree, this method may only be * invoked once for the root of the removed subtree, not once for * each individual set of siblings removed.
* *Use e.getPath()
* to get the former parent of the deleted node(s).
* e.getChildIndices()
* returns, in ascending order, the index(es)
* the node(s) had before being deleted.
Invoked after the tree has drastically changed structure from a * given node down. If the path returned by e.getPath() is of length * one and the first element does not identify the current root node * the first element should become the new root of the tree.
* *
Use e.getPath()
* to get the path to the node.
* e.getChildIndices()
* returns null.