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Eclipse Platform
Release 3.5

org.eclipse.core.databinding.observable
Class StaleEvent


java.lang.Object
  extended by 

java.util.EventObject
      extended by 

org.eclipse.core.databinding.observable.ObservableEvent
          extended by 
org.eclipse.core.databinding.observable.StaleEvent
All Implemented Interfaces:
Serializable

public class StaleEvent
extends ObservableEvent

Generic event denoting that the state of an IObservable object is about to change. Note that this event is only fired when an observable becomes stale, not when it becomes unstale; an observable that becomes unstale should always fire a change event. Staleness can be used (for example) to notify listeners when an observable has started a background thread for updating its state. Clients can safely ignore staleness.

Since:
1.0
See Also:
IObservable.isStale(), Serialized Form

Field Summary
 
Fields inherited from class java.util. EventObject
source
 
Constructor Summary
StaleEvent ( IObservable source)
          Creates a new stale event.
 
Method Summary
protected  void dispatch ( IObservablesListener listener)
          Dispatch this event to the given listener.
protected   Object getListenerType ()
          Returns a unique object used for distinguishing this event type from others.
 
Methods inherited from class org.eclipse.core.databinding.observable. ObservableEvent
getObservable
 
Methods inherited from class java.util. EventObject
getSource, toString
 
Methods inherited from class java.lang. Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

StaleEvent

public StaleEvent(
IObservable source)
Creates a new stale event.

Parameters:
source - the source observable
Method Detail

dispatch

protected void dispatch(
IObservablesListener listener)
Description copied from class: ObservableEvent
Dispatch this event to the given listener. Subclasses must implement this method by calling the appropriate type-safe event handling method on the given listener according to the type of this event.

Specified by:
dispatch in class ObservableEvent
Parameters:
listener - the listener that should handle the event

getListenerType

protected 
Object getListenerType()
Description copied from class: ObservableEvent
Returns a unique object used for distinguishing this event type from others.

Specified by:
getListenerType in class ObservableEvent
Returns:
a unique object representing the concrete type of this event.

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