org.apache.commons.modeler
Class BaseNotificationBroadcaster

java.lang.Object
  |
  +--org.apache.commons.modeler.BaseNotificationBroadcaster

public class BaseNotificationBroadcaster

extends java.lang.Object

Implementation of NotificationBroadcaster for attribute change notifications. This class is used by BaseModelMBean to handle notifications of attribute change events to interested listeners.

Author:

Craig R. McClanahan, Costin Manolache

Field Summary

protected java.util.ArrayList	entries The set of registered BaseNotificationBroadcasterEntry entries.
(package private) int[]	hookCount
(package private) NotificationListener[][]	hooks

Constructor Summary

BaseNotificationBroadcaster()

Method Summary

void	addNotificationListener(NotificationListener listener, NotificationFilter filter, java.lang.Object handback) Add a notification event listener to this MBean.
MBeanNotificationInfo[]	getNotificationInfo() Return an MBeanNotificationInfo object describing the notifications sent by this MBean.
private void	registerNotifications(FixedNotificationFilter filter)
void	removeNotificationListener(NotificationListener listener) Remove a notification event listener from this MBean.
void	removeNotificationListener(NotificationListener listener, NotificationFilter filter, java.lang.Object handback) Remove a notification event listener from this MBean.
void	removeNotificationListener(NotificationListener listener, java.lang.Object handback) Remove a notification event listener from this MBean.
void	sendNotification(Notification notification) Send the specified notification to all interested listeners.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

entries

protected java.util.ArrayList entries

The set of registered BaseNotificationBroadcasterEntry entries.

hooks

NotificationListener[][] hooks

hookCount

int[] hookCount

Constructor Detail

BaseNotificationBroadcaster

public BaseNotificationBroadcaster()

Method Detail

addNotificationListener

public void addNotificationListener(NotificationListener listener,
                                    NotificationFilter filter,
                                    java.lang.Object handback)
                             throws java.lang.IllegalArgumentException

Add a notification event listener to this MBean.

Parameters:

listener - Listener that will receive event notifications

filter - Filter object used to filter event notifications actually delivered, or null for no filtering

handback - Handback object to be sent along with event notifications

Throws:

java.lang.IllegalArgumentException - if the listener parameter is null

getNotificationInfo

public MBeanNotificationInfo[] getNotificationInfo()

Return an MBeanNotificationInfo object describing the notifications sent by this MBean.

removeNotificationListener

public void removeNotificationListener(NotificationListener listener)
                                throws ListenerNotFoundException

Remove a notification event listener from this MBean.

Parameters:

listener - The listener to be removed (any and all registrations for this listener will be eliminated)

Throws:

ListenerNotFoundException - if this listener is not registered in the MBean

removeNotificationListener

public void removeNotificationListener(NotificationListener listener,
                                       java.lang.Object handback)
                                throws ListenerNotFoundException

Remove a notification event listener from this MBean.

Parameters:

listener - The listener to be removed (any and all registrations for this listener will be eliminated)

handback - Handback object to be sent along with event notifications

Throws:

ListenerNotFoundException - if this listener is not registered in the MBean

removeNotificationListener

public void removeNotificationListener(NotificationListener listener,
                                       NotificationFilter filter,
                                       java.lang.Object handback)
                                throws ListenerNotFoundException

Remove a notification event listener from this MBean.

Parameters:

listener - The listener to be removed (any and all registrations for this listener will be eliminated)

filter - Filter object used to filter event notifications actually delivered, or null for no filtering

handback - Handback object to be sent along with event notifications

Throws:

ListenerNotFoundException - if this listener is not registered in the MBean

sendNotification

public void sendNotification(Notification notification)

Send the specified notification to all interested listeners.

Parameters:

notification - The notification to be sent

registerNotifications

private void registerNotifications(FixedNotificationFilter filter)