PreferenceChangeListener.java revision bc1e8f94811dd4cb821fa35bce1fd007a6c71a61 
1/*
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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
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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).
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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24 */
25
26package java.util.prefs;
27
28/**
29 * A listener for receiving preference change events.
30 *
31 * @author  Josh Bloch
32 * @see Preferences
33 * @see PreferenceChangeEvent
34 * @see NodeChangeListener
35 * @since   1.4
36 */
37@FunctionalInterface
38public interface PreferenceChangeListener extends java.util.EventListener {
39    /**
40     * This method gets called when a preference is added, removed or when
41     * its value is changed.
42     * <p>
43     * @param evt A PreferenceChangeEvent object describing the event source
44     *          and the preference that has changed.
45     */
46    void preferenceChange(PreferenceChangeEvent evt);
47}
48