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ListenerRegistry (JBoss/JMX API) - JBoss 3.2.7 jmx API Documentation 英文版文档

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org.jboss.mx.notification
Class ListenerRegistry

java.lang.Object
  org.jboss.mx.notification.ListenerRegistry

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public class ListenerRegistry

extends Object

A notification listener registry.

For addition and removal, the registrations are deeply cloned to allow the registrations to be iterated externally without incurring the cost of synchronization.

Version:

$Revision: 1.4.2.1 $

Revisions:

20030806 Juha Lindfors:

• Added removeAll()

Author:

Adrian Brock., Juha Lindfors.

See Also:

ListenerRegistration

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Nested Class Summary
class	ListenerRegistry.ListenerRegistrationIterator

 

Constructor Summary

ListenerRegistry()           Create a notification listener registry using the default listener registration factory.

ListenerRegistry(ListenerRegistrationFactory factory)           Create a notification listener registry using the passed listener registration factory.

 

Method Summary
void	add(NotificationListener listener, NotificationFilter filter, Object handback)           Adds a listener to a broadcaster
boolean	isEmpty()           Test whether the registry is empty
ListenerRegistry.ListenerRegistrationIterator	iterator()           Retrieve an iterator over the registrations
void	remove(NotificationListener listener)           Removes all registrations for a listener.
void	remove(NotificationListener listener, NotificationFilter filter, Object handback)           Removes only the registrations for a listener that match the filter and handback.
void	removeAll()           Removes all listeners from this listener registry.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

ListenerRegistry

public ListenerRegistry()

Create a notification listener registry using the default listener registration factory.

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ListenerRegistry

public ListenerRegistry(ListenerRegistrationFactory factory)

Create a notification listener registry using the passed listener registration factory.

Parameters:

factory - the factory to create registrations, use null for the default factory

Method Detail

add

public void add(NotificationListener listener,
                NotificationFilter filter,
                Object handback)
         throws JMException

Adds a listener to a broadcaster

Parameters:

listener - the listener to register

filter - filters the notifications in the broadcaster, can be null

handback - the object to include in the notification, can be null

Throws:

IllegalArgumentException - for a null listener

JMException - for an error adding to the registry

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remove

public void remove(NotificationListener listener)
            throws ListenerNotFoundException

Removes all registrations for a listener.

Parameters:

listener - the listener to remove

Throws:

ListenerNotFoundException - when the listener is not registered

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remove

public void remove(NotificationListener listener,
                   NotificationFilter filter,
                   Object handback)
            throws ListenerNotFoundException

Removes only the registrations for a listener that match the filter and handback.

Parameters:

listener - the listener to remove

filter - the filter of the registration to remove

handback - the handback object of the registration to remove

Throws:

ListenerNotFoundException - when the listener is not registered

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removeAll

public void removeAll()

Removes all listeners from this listener registry.

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iterator

public ListenerRegistry.ListenerRegistrationIterator iterator()

Retrieve an iterator over the registrations

The iterator behaves like a snapshot of the registrations is taken during this operation.

Returns:

the iterator

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isEmpty

public boolean isEmpty()

Test whether the registry is empty

Returns:

true when it is empty, false otherwise

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