CallChangeAdapter.java

/*
 * 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;

/**
 * An abstract adapter class for receiving call-state (change) events. This
 * class exists only as a convenience for creating listener objects.
 * <p>
 * Extend this class to create a <code>CallChangeEvent</code> listener and
 * override the methods for the events of interest. (If you implement the
 * <code>CallChangeListener</code> interface, you have to define all of the
 * methods in it. This abstract class defines null methods for them all, so you
 * only have to define methods for events you care about.)
 * </p>
 * 
 * @see CallChangeEvent
 * @see CallChangeListener
 * 
 * @author Lubomir Marinov
 */
public abstract class CallChangeAdapter
    implements CallChangeListener
{

    /*
     * (non-Javadoc)
     * 
     * @seenet.java.sip.communicator.service.protocol.event.CallChangeListener#
     * callParticipantAdded
     * (net.java.sip.communicator.service.protocol.event.CallParticipantEvent)
     */
    public void callParticipantAdded(CallParticipantEvent evt)
    {
    }

    /*
     * (non-Javadoc)
     * 
     * @seenet.java.sip.communicator.service.protocol.event.CallChangeListener#
     * callParticipantRemoved
     * (net.java.sip.communicator.service.protocol.event.CallParticipantEvent)
     */
    public void callParticipantRemoved(CallParticipantEvent evt)
    {
    }

    /*
     * (non-Javadoc)
     * 
     * @seenet.java.sip.communicator.service.protocol.event.CallChangeListener#
     * callStateChanged
     * (net.java.sip.communicator.service.protocol.event.CallChangeEvent)
     */
    public void callStateChanged(CallChangeEvent evt)
    {
    }
}