Package org.apache.tomcat.util.modeler

Class BaseNotificationBroadcaster

java.lang.Object

org.apache.tomcat.util.modeler.BaseNotificationBroadcaster

All Implemented Interfaces:

NotificationBroadcaster

public class BaseNotificationBroadcaster
extends Object
implements NotificationBroadcaster

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

Fields

Modifier and Type	Field	Description
protected ArrayList<org.apache.tomcat.util.modeler.BaseNotificationBroadcasterEntry>	entries	The set of registered BaseNotificationBroadcasterEntry entries.

Constructor Summary

Constructors

Constructor	Description
BaseNotificationBroadcaster()

Method Summary

Modifier and Type	Method	Description
void	addNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback)	Add a notification event listener to this MBean.
MBeanNotificationInfo[]	getNotificationInfo()	Return an MBeanNotificationInfo object describing the notifications sent by this MBean.
void	removeNotificationListener(NotificationListener listener)	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 Details

entries

protected ArrayList<org.apache.tomcat.util.modeler.BaseNotificationBroadcasterEntry> entries

The set of registered BaseNotificationBroadcasterEntry entries.

Constructor Details

BaseNotificationBroadcaster

public BaseNotificationBroadcaster()

Method Details

addNotificationListener

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

Add a notification event listener to this MBean.

Specified by:

addNotificationListener in interface NotificationBroadcaster

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:

IllegalArgumentException - if the listener parameter is null

getNotificationInfo

public MBeanNotificationInfo[] getNotificationInfo()

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

Specified by:

getNotificationInfo in interface NotificationBroadcaster

removeNotificationListener

public void removeNotificationListener(NotificationListener listener)
                                throws ListenerNotFoundException

Remove a notification event listener from this MBean.

Specified by:

removeNotificationListener in interface NotificationBroadcaster

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

sendNotification

public void sendNotification(Notification notification)

Send the specified notification to all interested listeners.

Parameters:

notification - The notification to be sent