/*
* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package net.java.sip.communicator.service.protocol.event;
import java.util.*;
/**
* <tt>ContactPresenceStatusListener</tt>s listener for events caused by
* changes in the status of contacts that we have active subscriptions for.
* <p>
* Events handled by this listener a most often the direct result of server/
* remotely generated notifications.
* @author Emil Ivov
*/
public interface ContactPresenceStatusListener
extends EventListener
{
/**
* Called whenever a change occurs in the PresenceStatus of one of the
* contacts that we have subscribed for.
* @param evt the ContactPresenceStatusChangeEvent describing the status
* change.
*/
public void contactPresenceStatusChanged(
ContactPresenceStatusChangeEvent evt);
}