public NotificationBroadcasterSupport() 
{
        this(null, (MBeanNotificationInfo[]) null);
}

Constructs a NotificationBroadcasterSupport where each listener is invoked by the thread sending the notification. This constructor is equivalent to NotificationBroadcasterSupport(null, null) .

 public NotificationBroadcasterSupport(Executor executor) 
{
        this(executor, (MBeanNotificationInfo[]) null);
}

Constructs a NotificationBroadcasterSupport where each listener is invoked using the given java.util.concurrent.Executor . When sendNotification is called, a listener is selected if it was added with a null NotificationFilter , or if isNotificationEnabled returns true for the notification being sent. The call to NotificationFilter.isNotificationEnabled takes place in the thread that called sendNotification. Then, for each selected listener, executor.execute is called with a command that calls the handleNotification method. This constructor is equivalent to NotificationBroadcasterSupport(executor, null) .

Parameters:

executor - an executor used by the method sendNotification to send each notification. If it is null, the thread calling sendNotification will invoke the handleNotification method itself.

since: 1.6 -

 public NotificationBroadcasterSupport(MBeanNotificationInfo info) 
{
        this(null, info);
}

Constructs a NotificationBroadcasterSupport with information about the notifications that may be sent. Each listener is invoked by the thread sending the notification. This constructor is equivalent to MBeanNotificationInfo[] info) info) .

If the info array is not empty, then it is cloned by the constructor as if by {@code info.clone()}, and each call to #getNotificationInfo() returns a new clone.

Parameters:

info - an array indicating, for each notification this MBean may send, the name of the Java class of the notification and the notification type. Can be null, which is equivalent to an empty array.

since: 1.6 -

 public NotificationBroadcasterSupport(Executor executor,
    MBeanNotificationInfo info) 
{
        this.executor = (executor != null) ? executor : defaultExecutor;
        notifInfo = info == null ? NO_NOTIFICATION_INFO : info.clone();
}

Constructs a NotificationBroadcasterSupport with information about the notifications that may be sent, and where each listener is invoked using the given java.util.concurrent.Executor .

When sendNotification is called, a listener is selected if it was added with a null NotificationFilter , or if isNotificationEnabled returns true for the notification being sent. The call to NotificationFilter.isNotificationEnabled takes place in the thread that called sendNotification. Then, for each selected listener, executor.execute is called with a command that calls the handleNotification method.

If the info array is not empty, then it is cloned by the constructor as if by {@code info.clone()}, and each call to #getNotificationInfo() returns a new clone.

Parameters:

executor - an executor used by the method sendNotification to send each notification. If it is null, the thread calling sendNotification will invoke the handleNotification method itself.

info - an array indicating, for each notification this MBean may send, the name of the Java class of the notification and the notification type. Can be null, which is equivalent to an empty array.

since: 1.6 -

 public  void addNotificationListener(NotificationListener listener,
    NotificationFilter filter,
    Object handback) 
{
        if (listener == null) {
            throw new IllegalArgumentException ("Listener can't be null") ;
        }
        listenerList.add(new ListenerInfo(listener, filter, handback));
}

Adds a listener.

 public MBeanNotificationInfo[] getNotificationInfo() 
{
        if (notifInfo.length == 0)
            return notifInfo;
        else
            return notifInfo.clone();
}

 protected  void handleNotification(NotificationListener listener,
    Notification notif,
    Object handback) 
{
        listener.handleNotification(notif, handback);
}

This method is called by sendNotification for each listener in order to send the notification to that listener. It can be overridden in subclasses to change the behavior of notification delivery, for instance to deliver the notification in a separate thread.

The default implementation of this method is equivalent to

listener.handleNotification(notif, handback);

 public  void removeNotificationListener(NotificationListener listener) throws ListenerNotFoundException 
{
        ListenerInfo wildcard = new WildcardListenerInfo(listener);
        boolean removed =
            listenerList.removeAll(Collections.singleton(wildcard));
        if (!removed)
            throw new ListenerNotFoundException("Listener not registered");
}

 public  void removeNotificationListener(NotificationListener listener,
    NotificationFilter filter,
    Object handback) throws ListenerNotFoundException 
{
        ListenerInfo li = new ListenerInfo(listener, filter, handback);
        boolean removed = listenerList.remove(li);
        if (!removed) {
            throw new ListenerNotFoundException("Listener not registered " +
                                                "(with this filter and " +
                                                "handback)");
            // or perhaps not registered at all
        }
}

 public  void sendNotification(Notification notification) 
{
        if (notification == null) {
            return;
        }
        boolean enabled;
        for (ListenerInfo li : listenerList) {
            try {
                enabled = li.filter == null ||
                    li.filter.isNotificationEnabled(notification);
            } catch (Exception e) {
                if (logger.debugOn()) {
                    logger.debug("sendNotification", e);
                }
                continue;
            }
            if (enabled) {
                executor.execute(new SendNotifJob(notification, li));
            }
        }
}

Sends a notification. If an {@code Executor} was specified in the constructor, it will be given one task per selected listener to deliver the notification to that listener.