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Java > Open Source Codes > org > jboss > util > property > PropertyListener


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 package org.jboss.util.property;
23
24 import java.util.EventListener JavaDoc;
25
26 /**
27  * The listener interface for receiving property events.
28  *
29  * <p>Classes that are interested in processing a property event implement
30  * this interface, and register instance objects with a given PropertyMap
31  * or the PropertyManager via <code>addPropertyListener()</code>.
32  *
33  * @version <tt>$Revision: 1958 $</tt>
34  * @author <a HREF="mailto:jason@planet57.com">Jason Dillon</a>
35  */
36 public interface PropertyListener
37    extends EventListener JavaDoc
38 {
39    /**
40     * Notifies that a property was added
41     *
42     * @param event Property event
43     */
44    void propertyAdded(PropertyEvent event);
45
46    /**
47     * Notifies that a property was removed
48     *
49     * @param event Property event
50     */
51    void propertyRemoved(PropertyEvent event);
52
53    /**
54     * Notifies that a property has changed
55     *
56     * @param event Property event
57     */
58    void propertyChanged(PropertyEvent event);
59 }
60
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