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Eclipse Platform
Release 3.5

org.eclipse.jface.resource
Class ResourceRegistry

java.lang.Object
  extended by 

org.eclipse.core.commands.common.EventManager
      extended by 
org.eclipse.jface.resource.ResourceRegistry
Direct Known Subclasses:
ColorRegistry, FontRegistry

public abstract class ResourceRegistry
extends EventManager

Abstract base class for various JFace registries.

Since:
3.0

Constructor Summary
ResourceRegistry ()
           
 
Method Summary
 void addListener ( IPropertyChangeListener listener)
          Adds a property change listener to this registry.
protected abstract  void clearCaches ()
          Disposes all currently allocated resources.
protected  void fireMappingChanged ( String name, Object oldValue, Object newValue)
          Fires a PropertyChangeEvent.
abstract   Set getKeySet ()
           
abstract  boolean hasValueFor ( String key)
          Return whether or not the receiver has a value for the supplied key.
 void removeListener ( IPropertyChangeListener listener)
          Removes the given listener from this registry.
 
Methods inherited from class org.eclipse.core.commands.common. EventManager
addListenerObject, clearListeners, getListeners, isListenerAttached, removeListenerObject
 
Methods inherited from class java.lang. Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ResourceRegistry

public ResourceRegistry()
Method Detail

addListener

public void addListener(
IPropertyChangeListener listener)
Adds a property change listener to this registry.

Parameters:
listener - a property change listener

clearCaches

protected abstract void clearCaches()
Disposes all currently allocated resources.


getKeySet

public abstract 
Set getKeySet()
Returns:
the set of keys this manager knows about. This collection should be immutable.

hasValueFor

public abstract boolean hasValueFor(
String key)
Return whether or not the receiver has a value for the supplied key.

Parameters:
key - the key
Returns:
true if there is a value for this key

fireMappingChanged

protected void fireMappingChanged(
String name,
                                  
Object oldValue,
                                  
Object newValue)
Fires a PropertyChangeEvent.

Parameters:
name - the name of the symbolic value that is changing.
oldValue - the old value.
newValue - the new value.

removeListener

public void removeListener(
IPropertyChangeListener listener)
Removes the given listener from this registry. Has no affect if the listener is not registered.

Parameters:
listener - a property change listener

Eclipse Platform
Release 3.5

Guidelines for using Eclipse APIs.

Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.


 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire