org.mmbase.core.event
Class WeakNodeEventBroker

java.lang.Object
  org.mmbase.core.event.EventBroker
      org.mmbase.core.event.AbstractEventBroker
          org.mmbase.core.event.WeakNodeEventBroker

public class WeakNodeEventBroker
extends AbstractEventBroker

Since:

MMBase-1.8.5

Version:

$Id: WeakNodeEventBroker.java 34900 2009-05-01 16:29:42Z michiel $

Author:

Michiel Meeuwissen

Constructor Summary

WeakNodeEventBroker()

Method Summary

boolean	canBrokerForEvent(Event event) this method should return true if this event broker can broker for events of this type.
boolean	canBrokerForListener(EventListener listener) this method should return true if this broker can accept and propagate events to the listener of this type.
protected void	notifyEventListener(Event event, EventListener listener) This method has two functions.
String	toString()

Methods inherited from class org.mmbase.core.event.AbstractEventBroker

addListener, backing, removeListener

Methods inherited from class org.mmbase.core.event.EventBroker

equals, getListeners, hashCode, notifyForEvent

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

WeakNodeEventBroker

public WeakNodeEventBroker()

Method Detail

canBrokerForListener

public boolean canBrokerForListener(EventListener listener)

Description copied from class: EventBroker

this method should return true if this broker can accept and propagate events to the listener of this type. There are no fixed criteria for this. Most implementions do event instanceof <EventListener associated with this broker>

Specified by:

canBrokerForListener in class EventBroker

canBrokerForEvent

public boolean canBrokerForEvent(Event event)

Description copied from class: EventBroker

this method should return true if this event broker can broker for events of this type. There are no fixed criteria for this. Most implementions do event instanceof <EvenType associated with this broker>

Specified by:

canBrokerForEvent in class EventBroker

notifyEventListener

protected void notifyEventListener(Event event,
                                   EventListener listener)

Description copied from class: EventBroker

This method has two functions. It must cast both event and listener to the proper type and invoke the event on the listener. But it must allso check if the listener has constraint properties set. if so it must use them to decide if the event should be invoked on this listener.

Specified by:

notifyEventListener in class EventBroker

toString

public String toString()

Specified by:

toString in class EventBroker