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Eclipse Platform
Release 3.5

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

java.lang.Object
  extended by 

org.eclipse.core.databinding.observable.AbstractObservable
      extended by 

org.eclipse.core.databinding.observable.DecoratingObservable
          extended by 

org.eclipse.core.databinding.observable.value.DecoratingObservableValue
              extended by 
org.eclipse.core.databinding.observable.value.DecoratingVetoableValue
All Implemented Interfaces:
IDecoratingObservable, IObservable, IObservableValue, IVetoableValue

public class DecoratingVetoableValue
extends DecoratingObservableValue
implements IVetoableValue

An IVetoableValue decorator for an observable value.

Since:
1.2

Constructor Summary
DecoratingVetoableValue ( IObservableValue decorated, boolean disposeDecoratedOnDispose)
           
 
Method Summary
protected  void addListener ( Object listenerType, IObservablesListener listener)
           
 void addValueChangingListener ( IValueChangingListener listener)
           
protected   Object clone ()
           
protected  void fireEvent ( ObservableEvent event)
           
protected  boolean fireValueChanging ( ValueDiff diff)
          Notifies listeners about a pending change, and returns true if no listener vetoed the change.
  Realm getRealm ()
           
protected  boolean hasListeners ()
           
protected  void removeListener ( Object listenerType, IObservablesListener listener)
           
 void removeValueChangingListener ( IValueChangingListener listener)
           
 void setValue ( Object value)
          Sets the value.
 
Methods inherited from class org.eclipse.core.databinding.observable.value. DecoratingObservableValue
addValueChangeListener, dispose, fireChange, fireValueChange, firstListenerAdded, getValue, getValueType, handleValueChange, lastListenerRemoved, removeValueChangeListener
 
Methods inherited from class org.eclipse.core.databinding.observable. DecoratingObservable
equals, getDecorated, getterCalled, handleStaleEvent, hashCode, isStale
 
Methods inherited from class org.eclipse.core.databinding.observable. AbstractObservable
addChangeListener, addDisposeListener, addStaleListener, checkRealm, fireStale, isDisposed, removeChangeListener, removeDisposeListener, removeStaleListener
 
Methods inherited from class java.lang. Object
finalize, getClass, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.eclipse.core.databinding.observable.value. IObservableValue
addValueChangeListener, getValue, getValueType, removeValueChangeListener
 
Methods inherited from interface org.eclipse.core.databinding.observable. IObservable
addChangeListener, addDisposeListener, addStaleListener, dispose, getRealm, isDisposed, isStale, removeChangeListener, removeDisposeListener, removeStaleListener
 

Constructor Detail

DecoratingVetoableValue

public DecoratingVetoableValue(
IObservableValue decorated,
                               boolean disposeDecoratedOnDispose)
Parameters:
decorated -
disposeDecoratedOnDispose -
Method Detail

setValue

public void setValue(
Object value)
Description copied from interface: IObservableValue
Sets the value. Must be invoked in the Realm of the observable.

Specified by:
setValue in interface IObservableValue
Overrides:
setValue in class DecoratingObservableValue
Parameters:
value - the value to set

addValueChangingListener

public void addValueChangingListener(
IValueChangingListener listener)
Specified by:
addValueChangingListener in interface IVetoableValue

removeValueChangingListener

public void removeValueChangingListener(
IValueChangingListener listener)
Specified by:
removeValueChangingListener in interface IVetoableValue

fireValueChanging

protected boolean fireValueChanging(
ValueDiff diff)
Notifies listeners about a pending change, and returns true if no listener vetoed the change.

Parameters:
diff -
Returns:
false if the change was vetoed, true otherwise

addListener

protected void addListener(
Object listenerType,
                           
IObservablesListener listener)
Parameters:
listenerType -
listener -

removeListener

protected void removeListener(
Object listenerType,
                              
IObservablesListener listener)
Parameters:
listenerType -
listener -

hasListeners

protected boolean hasListeners()

fireEvent

protected void fireEvent(
ObservableEvent event)

getRealm

public 
Realm getRealm()
Returns:
Returns the realm.

clone

protected 
Object clone()
                throws 
CloneNotSupportedException
Overrides:
clone in class Object
Throws:
CloneNotSupportedException

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