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Java > Open Source Codes > com > inversoft > beans > PropertyListener


1 /*
2  * Copyright (c) 2003, Inversoft
3  *
4  * This software is distribuable under the GNU Lesser General Public License.
5  * For more information visit gnu.org.
6  */
7 package com.inversoft.beans;
8
9
10 import java.util.EventListener JavaDoc;
11
12
13 /**
14  * <p>
15  * This interface is an event listener for property events.
16  * These events take place when a BeanProperty or similar
17  * class is retrieving or updating (setting) a properties
18  * value. The different types of events that this listener
19  * watchs are:
20  * </p>
21  *
22  * <ul>
23  * <li>Property retrieval</li>
24  * <li>Property setting/changing</li>
25  * </ul>
26  *
27  * @author Brian Pontarelli
28  */
29 public interface PropertyListener extends EventListener JavaDoc {
30
31     /**
32      * This handle method is called when the property value is being retrieved
33      * by calling the getter for the property
34      */
35     void handleGet(PropertyEvent event);
36
37     /**
38      * This handle method is called when the property value is being changed
39      * by calling the setter for the property
40      */
41     void handleSet(PropertyEvent event);
42 }
43
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