TreeEventModel


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.
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9    * When distributing Covered Code, include this CDDL Header Notice in each file
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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  package org.netbeans.tax.event;
20  
21  import java.beans.PropertyChangeListener  ;
22  
23  /**
24   *
25   * @author  Libor Kramolis
26   * @version 0.1
27   */
28  public interface TreeEventModel {
29  
30      /** Add a PropertyChangeListener to the listener list.
31       * @param listener The listener to add.
32       */
33      public void addPropertyChangeListener (PropertyChangeListener   listener);
34  
35      /** Removes a PropertyChangeListener from the listener list.
36       * @param listener The listener to remove.
37       */
38      public void removePropertyChangeListener (PropertyChangeListener   listener);
39      
40      /** Add a PropertyChangeListener for a specific property to the listener list.
41       * @param propertyname Name of the property to listen on.
42       * @param listener The listener to add.
43       */
44      public void addPropertyChangeListener (String   propertyName, PropertyChangeListener   listener);
45      
46      /** Removes a PropertyChangeListener for a specific property from the listener list.
47       * @param propertyname Name of the property that was listened on.
48       * @param listener The listener to remove.
49       */
50      public void removePropertyChangeListener (String   propertyName, PropertyChangeListener   listener);
51      
52      /**
53       * Check if there are any listeners for a specific property.
54       *
55       * @param propertyName  the property name.
56       * @return true if there are ore or more listeners for the given property
57       */
58      public boolean hasPropertyChangeListeners (String   propertyName);
59      
60  }
61
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