org.mmbase.core.event
Class TypedRelationEventListenerWrapper

java.lang.Object
  org.mmbase.core.event.TypedRelationEventListenerWrapper

All Implemented Interfaces:

EventListener, RelationEventListener

public class TypedRelationEventListenerWrapper
extends Object
implements RelationEventListener

This class is a wrapper for relation event listeners that only want to listen to events concerning a specific builder - more specifically, events concerning changes in the relations from a specific builder's nodes.

Since:

MMBase-1.8

Version:

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

Author:

Ernst Bunders

Constructor Summary

TypedRelationEventListenerWrapper(MMObjectBuilder builder, RelationEventListener wrappedListener, int direction, boolean descendants)

Method Summary

boolean	equals(Object o)
int	hashCode()
void	notify(RelationEvent event)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

TypedRelationEventListenerWrapper

public TypedRelationEventListenerWrapper(MMObjectBuilder builder,
                                         RelationEventListener wrappedListener,
                                         int direction,
                                         boolean descendants)

Parameters:

builder - The builder which must constrain the listener

wrappedListener - the relation event listener you want to wrap

direction - At which side of the relation nodes of this builders can be: RelationStep.DIRECTIONS_SOURCE, RelationStep.DIRECTIONS_DESTINATION, or RelationStep.DIRECTIONS_BOTH

descendants - Whether also descendants of the given builder must be listened to. ('true' would be the must logical value).

Method Detail

notify

public void notify(RelationEvent event)

Specified by:

notify in interface RelationEventListener

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object