001/* ----------------------------------------------------------------------------
002   The Kiwi Toolkit - A Java Class Library
003   Copyright (C) 1998-2004 Mark A. Lindner
004
005   This library is free software; you can redistribute it and/or
006   modify it under the terms of the GNU General Public License as
007   published by the Free Software Foundation; either version 2 of the
008   License, or (at your option) any later version.
009
010   This library is distributed in the hope that it will be useful,
011   but WITHOUT ANY WARRANTY; without even the implied warranty of
012   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013   General Public License for more details.
014
015   You should have received a copy of the GNU General Public License
016   along with this library; if not, write to the Free Software
017   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
018   02111-1307, USA.
019 
020   The author may be contacted at: mark_a_lindner@yahoo.com
021   ----------------------------------------------------------------------------
022   $Log: PropertyChangeSource.java,v $
023   Revision 1.5  2004/05/05 22:16:57  markl
024   comment block updates
025
026   Revision 1.4  2003/01/19 09:34:09  markl
027   Javadoc & comment header updates.
028
029   Revision 1.3  2001/03/12 01:38:49  markl
030   Source code cleanup.
031
032   Revision 1.2  1999/01/10 03:29:53  markl
033   added GPL header & RCS tag
034   ----------------------------------------------------------------------------
035*/
036
037package kiwi.event;
038
039import java.beans.*;
040
041/** Interface that must be implemented by objects that are sources of
042  * <code>PropertyChangeEvent</code>s.
043  *
044  * @see java.beans.PropertyChangeEvent
045  *
046  * @author Mark Lindner
047  */
048
049public interface PropertyChangeSource
050  {
051
052  /** Register a new property change listener.
053    *
054    * @param listener The <code>PropertyChangeListener</code> to be added to
055    * this object's list of listeners.
056    */
057
058  public void addPropertyChangeListener(PropertyChangeListener listener);
059
060  /** Unregister a property change listener.
061    *
062    * @param listener The <code>PropertyChangeListener</code> to be removed
063    * from this object's list of listeners.
064    */
065
066  public void removePropertyChangeListener(PropertyChangeListener listener);
067  }
068
069/* end of source file */