NodeChangeListener.java revision 51b1b6997fd3f980076b8081f7f1165ccc2a4008 
1/*
2 * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24 */
25
26package java.util.prefs;
27
28/**
29 * A listener for receiving preference node change events.
30 *
31 * @author  Josh Bloch
32 * @see     Preferences
33 * @see     NodeChangeEvent
34 * @see     PreferenceChangeListener
35 * @since   1.4
36 */
37
38public interface NodeChangeListener extends java.util.EventListener {
39    /**
40     * This method gets called when a child node is added.
41     *
42     * @param evt A node change event object describing the parent
43     *            and child node.
44     */
45    void childAdded(NodeChangeEvent evt);
46
47    /**
48     * This method gets called when a child node is removed.
49     *
50     * @param evt A node change event object describing the parent
51     *            and child node.
52     */
53    void childRemoved(NodeChangeEvent evt);
54}
55