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

java.lang.Object
  org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider
      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