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Eclipse Platform
Release 3.5

org.eclipse.core.databinding.observable.value
Class ValueChangeEvent


java.lang.Object
  extended by 

java.util.EventObject
      extended by 

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

public class ValueChangeEvent
extends ObservableEvent

Value change event describing a change of an IObservableValue object's current value.

Since:
1.0
See Also:
Serialized Form

Field Summary
  ValueDiff diff
          Description of the change to the source observable value.
 
Fields inherited from class java.util. EventObject
source
 
Constructor Summary
ValueChangeEvent ( IObservableValue source, ValueDiff diff)
          Creates a new value change 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.
  IObservableValue getObservableValue ()
          Returns the observable value from which this event originated.
 
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
 

Field Detail

diff

public 
ValueDiff diff
Description of the change to the source observable value. Listeners must not change this field.

Constructor Detail

ValueChangeEvent

public ValueChangeEvent(
IObservableValue source,
                        
ValueDiff diff)
Creates a new value change event.

Parameters:
source - the source observable value
diff - the value change
Method Detail

getObservableValue

public 
IObservableValue getObservableValue()
Returns the observable value from which this event originated.

Returns:
returns the observable value from which this event originated

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