Runtime

org.eclipse.gmf.runtime.diagram.core.listener
Class DiagramEventBroker.NotifierToKeyToListenersSetMap

java.lang.Object
  extended by org.eclipse.gmf.runtime.diagram.core.listener.DiagramEventBroker.NotifierToKeyToListenersSetMap
Enclosing class:
DiagramEventBroker

public final class DiagramEventBroker.NotifierToKeyToListenersSetMap
extends java.lang.Object

Utility class representing a Map of Notifier to a Map of Keys to a Set of listener


Constructor Summary
DiagramEventBroker.NotifierToKeyToListenersSetMap()
           
 
Method Summary
 void addListener(org.eclipse.emf.ecore.EObject notifier, java.lang.Object listener)
          Adds a listener to the notifier; this listener is added againest a generic key, LISTEN_TO_ALL_FEATURES so it can listen to all events on the notifier
 void addListener(org.eclipse.emf.ecore.EObject notifier, java.lang.Object key, java.lang.Object listener)
          Adds a listener to the map
 java.util.Set getAllListeners(java.lang.Object notifier)
          return all listeners interested in the passed notifier
 java.util.Set getListeners(java.lang.Object notifier, java.lang.Object key)
          get listeners interested in the passed notifier and key
 boolean isEmpty()
           
 void removeListener(org.eclipse.emf.ecore.EObject notifier, java.lang.Object key, java.lang.Object listener)
          removes a listener from the map
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DiagramEventBroker.NotifierToKeyToListenersSetMap

public DiagramEventBroker.NotifierToKeyToListenersSetMap()
Method Detail

addListener

public void addListener(org.eclipse.emf.ecore.EObject notifier,
                        java.lang.Object key,
                        java.lang.Object listener)
Adds a listener to the map

Parameters:
notifier - the notifier the listener will listen to
key - a key for the listener, this help in categorizing the listeners based on their interest
listener - the listener

addListener

public void addListener(org.eclipse.emf.ecore.EObject notifier,
                        java.lang.Object listener)
Adds a listener to the notifier; this listener is added againest a generic key, LISTEN_TO_ALL_FEATURES so it can listen to all events on the notifier

Parameters:
notifier - the notifier the listener will listen to
listener - the listener

removeListener

public void removeListener(org.eclipse.emf.ecore.EObject notifier,
                           java.lang.Object key,
                           java.lang.Object listener)
removes a listener from the map

Parameters:
notifier -
key -
listener -

getListeners

public java.util.Set getListeners(java.lang.Object notifier,
                                  java.lang.Object key)
get listeners interested in the passed notifier and key

Parameters:
notifier -
key -
Returns:
Set of listeners

getAllListeners

public java.util.Set getAllListeners(java.lang.Object notifier)
return all listeners interested in the passed notifier

Parameters:
notifier -
Returns:

isEmpty

public boolean isEmpty()

Runtime

Guidelines for using Eclipse APIs.

Copyright (c) IBM Corp., Borland Software Corp., and others 2005,2006. All rights reserved.