01 /*
02 * Copyright 2000 Sun Microsystems, Inc. All Rights Reserved.
03 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04 *
05 * This code is free software; you can redistribute it and/or modify it
06 * under the terms of the GNU General Public License version 2 only, as
07 * published by the Free Software Foundation. Sun designates this
08 * particular file as subject to the "Classpath" exception as provided
09 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package java.util.prefs;
27
28 /**
29 * A listener for receiving preference node change events.
30 *
31 * @author Josh Bloch
32 * @version 1.11, 05/05/07
33 * @see Preferences
34 * @see NodeChangeEvent
35 * @see PreferenceChangeListener
36 * @since 1.4
37 */
38
39 public interface NodeChangeListener extends java.util.EventListener {
40 /**
41 * This method gets called when a child node is added.
42 *
43 * @param evt A node change event object describing the parent
44 * and child node.
45 */
46 void childAdded(NodeChangeEvent evt);
47
48 /**
49 * This method gets called when a child node is removed.
50 *
51 * @param evt A node change event object describing the parent
52 * and child node.
53 */
54 void childRemoved(NodeChangeEvent evt);
55 }
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