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/*
* Copyright (c) 2009, 2011, 2012 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.emf.cdo.transaction;
import org.eclipse.emf.cdo.CDOObject;
import org.eclipse.emf.cdo.common.revision.delta.CDOFeatureDelta;
import org.eclipse.emf.cdo.view.CDOView;
/**
* Asynchronously executes a delegate handler's pre-event methods. The delegate handler's code may access the
* {@link CDOView view} without causing deadlocks.
*
* @author Simon McDuff
* @since 2.0
*/
public class CDOAsyncTransactionHandler implements CDOTransactionHandler
{
private CDOTransactionHandler delegate;
public CDOAsyncTransactionHandler(CDOTransactionHandler delegate)
{
this.delegate = delegate;
}
/**
* Asynchronously executes the delegate handler's {@link #attachingObject(CDOTransaction, CDOObject)
* attachingObject()} method.
*/
public final void attachingObject(final CDOTransaction transaction, final CDOObject object)
{
runAsync(new Runnable()
{
public void run()
{
delegate.attachingObject(transaction, object);
}
});
}
/**
* Asynchronously executes the delegate handler's {@link #detachingObject(CDOTransaction, CDOObject)
* detachingObject()} method.
*/
public final void detachingObject(final CDOTransaction transaction, final CDOObject object)
{
runAsync(new Runnable()
{
public void run()
{
delegate.detachingObject(transaction, object);
}
});
}
/**
* Asynchronously executes the delegate handler's {@link #modifyingObject(CDOTransaction, CDOObject, CDOFeatureDelta)
* modifyingObject()} method.
*/
public final void modifyingObject(final CDOTransaction transaction, final CDOObject object,
final CDOFeatureDelta featureChange)
{
runAsync(new Runnable()
{
public void run()
{
delegate.modifyingObject(transaction, object, featureChange);
}
});
}
/**
* Asynchronously executes the delegate handler's {@link #committingTransaction(CDOTransaction, CDOCommitContext)
* committingTransaction()} method.
*/
public void committingTransaction(CDOTransaction transaction, CDOCommitContext commitContext)
{
delegate.committingTransaction(transaction, commitContext);
}
/**
* Synchronously executes the delegate handler's {@link #committedTransaction(CDOTransaction, CDOCommitContext)
* committedTransaction()} method.
*/
public void committedTransaction(CDOTransaction transaction, CDOCommitContext commitContext)
{
delegate.committedTransaction(transaction, commitContext);
}
/**
* Synchronously executes the delegate handler's {@link #rolledBackTransaction(CDOTransaction)
* rolledBackTransaction()} method.
*/
public void rolledBackTransaction(CDOTransaction transaction)
{
delegate.rolledBackTransaction(transaction);
}
/**
* Should be overridden if you want to use different threading mechanism.
*/
protected void runAsync(Runnable runnable)
{
new Thread(runnable).start();
}
}
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