/*
* $Id$
*
* Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
* Santa Clara, California 95054, U.S.A. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.jdesktop.swingx.event;
/**
* Interface for MessageListener registrations methods and indicates that the
* implementation class is a source of MessageEvents.
* MessageListeners which are interested in MessageEvents from this class can
* register themselves as listeners.
*
* @see MessageEvent
* @see MessageListener
* @author Mark Davidson
*/
public interface MessageSource {
/**
* Register the MessageListener.
*
* @param l the listener to register
*/
void addMessageListener(MessageListener l);
/**
* Unregister the MessageListener from the MessageSource.
*
* @param l the listener to unregister
*/
void removeMessageListener(MessageListener l);
/**
* Returns an array of listeners.
*
* @return an non null array of MessageListeners.
*/
MessageListener[] getMessageListeners();
}