BaseModelMBean.java 文件源码

/**
 * Add an attribute change notification event listener to this MBean.
 *
 * @param listener Listener that will receive event notifications
 * @param name Name of the attribute of interest, or <code>null</code>
 *  to indicate interest in all attributes
 * @param handback Handback object to be sent along with event
 *  notifications
 *
 * @exception IllegalArgumentException if the listener parameter is null
 */
@Override
public void addAttributeChangeNotificationListener
    (NotificationListener listener, String name, Object handback)
    throws IllegalArgumentException {

    if (listener == null)
        throw new IllegalArgumentException("Listener is null");
    if (attributeBroadcaster == null)
        attributeBroadcaster = new BaseNotificationBroadcaster();

    if( log.isDebugEnabled() )
        log.debug("addAttributeNotificationListener " + listener);

    BaseAttributeFilter filter = new BaseAttributeFilter(name);
    attributeBroadcaster.addNotificationListener
        (listener, filter, handback);

}