blob: 1ed49f0ee027a8302eb8b92a1de4dffb4c70eca9 [file] [log] [blame]
/*
* Copyright (c) 2009-2012 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:
* Simon McDuff - initial API and implementation
* Eike Stepper - maintenance
* Simon McDuff - bug 213402
*/
package org.eclipse.emf.cdo.spi.common.revision;
import org.eclipse.emf.cdo.common.revision.delta.CDOAddFeatureDelta;
import org.eclipse.emf.cdo.common.revision.delta.CDOClearFeatureDelta;
import org.eclipse.emf.cdo.common.revision.delta.CDOContainerFeatureDelta;
import org.eclipse.emf.cdo.common.revision.delta.CDOMoveFeatureDelta;
import org.eclipse.emf.cdo.common.revision.delta.CDORemoveFeatureDelta;
import org.eclipse.emf.cdo.common.revision.delta.CDORevisionDelta;
import org.eclipse.emf.cdo.common.revision.delta.CDOSetFeatureDelta;
import org.eclipse.emf.cdo.common.revision.delta.CDOUnsetFeatureDelta;
/**
* If the meaning of this type isn't clear, there really should be more of a description here...
*
* @author Simon McDuff
* @since 2.0
*/
public class CDORevisionMerger extends CDOFeatureDeltaVisitorImpl
{
private InternalCDORevision revision;
public CDORevisionMerger()
{
}
public synchronized void merge(InternalCDORevision revision, CDORevisionDelta delta)
{
this.revision = revision;
delta.accept(this);
revision = null;
}
@Override
public void visit(CDOMoveFeatureDelta delta)
{
revision.move(delta.getFeature(), delta.getNewPosition(), delta.getOldPosition());
}
@Override
public void visit(CDOAddFeatureDelta delta)
{
revision.add(delta.getFeature(), delta.getIndex(), delta.getValue());
}
@Override
public void visit(CDORemoveFeatureDelta delta)
{
revision.remove(delta.getFeature(), delta.getIndex());
}
@Override
public void visit(CDOSetFeatureDelta delta)
{
revision.set(delta.getFeature(), delta.getIndex(), delta.getValue());
}
@Override
public void visit(CDOUnsetFeatureDelta delta)
{
revision.unset(delta.getFeature());
}
@Override
public void visit(CDOClearFeatureDelta delta)
{
revision.clear(delta.getFeature());
}
@Override
public void visit(CDOContainerFeatureDelta delta)
{
revision.setResourceID(delta.getResourceID());
revision.setContainerID(delta.getContainerID());
revision.setContainingFeatureID(delta.getContainerFeatureID());
}
}