ComponentListener


1   /*
2    * The contents of this file are subject to the terms of the Common Development
3    * and Distribution License (the License). You may not use this file except in
4    * compliance with the License.
5    *
6    * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7    * or http://www.netbeans.org/cddl.txt.
8    *
9    * When distributing Covered Code, include this CDDL Header Notice in each file
10   * and include the License file at http://www.netbeans.org/cddl.txt.
11   * If applicable, add the following below the CDDL Header, with the fields
12   * enclosed by brackets [] replaced by your own identifying information:
13   * "Portions Copyrighted [year] [name of copyright owner]"
14   *
15   * The Original Software is NetBeans. The Initial Developer of the Original
16   * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17   * Microsystems, Inc. All Rights Reserved.
18   */
19  
20  package org.netbeans.modules.xml.xam;
21  
22  import java.util.EventListener  ;
23  
24  /**
25   * A component listener provides a coarse-grained event stream based on 
26   * values or children of the source. This is not intended to replace
27   * property change events and only serves as a way to differentiate between
28   * children and non children related events. 
29   *
30   * @author Rico Cruz
31   * @author Nam Nguyen
32   * @author Chris Webster
33   */
34  public interface ComponentListener extends EventListener   {
35      /**
36       * Invoked if a value other than children is changed.
37       * @param evt component event
38       */
39      void valueChanged(ComponentEvent evt);
40      /**
41       * Invoked if a child has been added.
42       * @param evt component event
43       */
44      void childrenAdded(ComponentEvent evt);
45      /**
46       * Invoked if a child has been removed. 
47       * @param evt component event
48       */
49      void childrenDeleted(ComponentEvent evt);
50  }
51
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