ChatRoomPropertyChangeListener.java

package net.java.sip.communicator.service.protocol.event;

import java.util.*;

/**
 * The ChatRoomPropertyChangeListener receives events notifying interested
 * parties that a property of the corresponding chat room (e.g. such as its
 * subject or type) has been modified or failed to be modified.
 * <br>
 * The modification of a property could fail, because the implementation
 * doesn't support such a property.
 *
 * @author Emil Ivov
 * @author Yana Stamcheva
 */
public interface ChatRoomPropertyChangeListener
    extends EventListener
{
    /**
     * Called to indicate that a chat room property has been modified.
     * 
     * @param event the ChatRoomPropertyChangeEvent containing the name of the
     * property that has just changed, as well as its old and new values.
     */
    public void chatRoomPropertyChanged(ChatRoomPropertyChangeEvent event);
    
    /**
     * Called to indicate that a change of a chat room property has failed.
     * The modification of a property could fail, because the implementation
     * doesn't support such a property.
     *
     * @param event the ChatRoomPropertyChangeFailedEvent containing the name of
     * the property that has failed, as well as its old and new values.
     */
    public void chatRoomPropertyChangeFailed(
        ChatRoomPropertyChangeFailedEvent event);

}