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org.eclipse.emf.transaction.ui.provider
Class TransactionalAdapterFactoryContentProvider

java.lang.Object
  extended by 

org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider
      extended by 
org.eclipse.emf.transaction.ui.provider.TransactionalAdapterFactoryContentProvider
All Implemented Interfaces:
INotifyChangedListener, IContentProvider, IStructuredContentProvider, ITreeContentProvider, IPropertySourceProvider

public class TransactionalAdapterFactoryContentProvider
extends AdapterFactoryContentProvider

Automatically wraps any potential access to model objects in read transactions. Note that this is not necessary in the case of the AdapterFactoryContentProvider.notifyChanged(Notification) method because this will always be called in a transaction context.


Nested Class Summary
 
Nested classes/interfaces inherited from class org.eclipse.emf.edit.ui.provider. AdapterFactoryContentProvider
AdapterFactoryContentProvider.ViewerRefresh
 
Field Summary
 
Fields inherited from class org.eclipse.emf.edit.ui.provider. AdapterFactoryContentProvider
adapterFactory, viewer, viewerRefresh
 
Constructor Summary
TransactionalAdapterFactoryContentProvider ( TransactionalEditingDomain domain, AdapterFactory adapterFactory)
          Initializes me with the editing domain in which I create read transactions and that adapter factory that provides content providers.
 
Method Summary
protected   IPropertySource createPropertySource ( Object object, IItemPropertySource itemPropertySource)
          Extends the inherited implementation by running in a read-only transaction.
  Object[] getChildren ( Object object)
          Extends the inherited implementation by running in a read-only transaction.
  Object[] getElements ( Object object)
          Extends the inherited implementation by running in a read-only transaction.
  Object getParent ( Object object)
          Extends the inherited implementation by running in a read-only transaction.
  IPropertySource getPropertySource ( Object object)
          Extends the inherited implementation by running in a read-only transaction.
 boolean hasChildren ( Object object)
          Extends the inherited implementation by running in a read-only transaction.
 void inputChanged ( Viewer vwr, Object oldInput, Object newInput)
          Extends the inherited implementation by running in a read-only transaction.
protected
<T> T
run ( RunnableWithResult<? extends T> run)
          Runs the specified runnable in the editing domain, with interrupt handling.
protected   IPropertySource wrap ( IPropertySource propertySource)
          Wraps a property source in a transactional property source.
 
Methods inherited from class org.eclipse.emf.edit.ui.provider. AdapterFactoryContentProvider
dispose, getAdapterFactory, notifyChanged, setAdapterFactory
 
Methods inherited from class java.lang. Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TransactionalAdapterFactoryContentProvider

public TransactionalAdapterFactoryContentProvider(
TransactionalEditingDomain domain,
                                                  
AdapterFactory adapterFactory)
Initializes me with the editing domain in which I create read transactions and that adapter factory that provides content providers.

Parameters:
domain - my editing domain
adapterFactory - the adapter factory
Method Detail

run

protected <T> T run(
RunnableWithResult<? extends T> run)
Runs the specified runnable in the editing domain, with interrupt handling.

Type Parameters:
T - the result type of the runnable
Parameters:
run - the runnable to run
Returns:
its result, or null on interrupt

createPropertySource

protected 
IPropertySource createPropertySource(
Object object,
                                               
IItemPropertySource itemPropertySource)
Extends the inherited implementation by running in a read-only transaction. The returned property source also uses transactions to access properties.

Overrides:
createPropertySource in class AdapterFactoryContentProvider

getChildren

public 
Object[] getChildren(
Object object)
Extends the inherited implementation by running in a read-only transaction.

Specified by:
getChildren in interface ITreeContentProvider
Overrides:
getChildren in class AdapterFactoryContentProvider

getElements

public 
Object[] getElements(
Object object)
Extends the inherited implementation by running in a read-only transaction.

Specified by:
getElements in interface IStructuredContentProvider
Overrides:
getElements in class AdapterFactoryContentProvider

getParent

public 
Object getParent(
Object object)
Extends the inherited implementation by running in a read-only transaction.

Specified by:
getParent in interface ITreeContentProvider
Overrides:
getParent in class AdapterFactoryContentProvider

getPropertySource

public 
IPropertySource getPropertySource(
Object object)
Extends the inherited implementation by running in a read-only transaction. The returned property source also uses transactions to access properties.

Specified by:
getPropertySource in interface IPropertySourceProvider
Overrides:
getPropertySource in class AdapterFactoryContentProvider

hasChildren

public boolean hasChildren(
Object object)
Extends the inherited implementation by running in a read-only transaction.

Specified by:
hasChildren in interface ITreeContentProvider
Overrides:
hasChildren in class AdapterFactoryContentProvider

inputChanged

public void inputChanged(
Viewer vwr,
                         
Object oldInput,
                         
Object newInput)
Extends the inherited implementation by running in a read-only transaction.

Specified by:
inputChanged in interface IContentProvider
Overrides:
inputChanged in class AdapterFactoryContentProvider

wrap

protected 
IPropertySource wrap(
IPropertySource propertySource)
Wraps a property source in a transactional property source.

Parameters:
propertySource - the property source to wrap
Returns:
a wrapper that delegates to the original property source within transactions

Copyright 2002, 2007 IBM Corporation and others.
All Rights Reserved.


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