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/*
* Copyright (c) 2004 - 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
*/
package org.eclipse.emf.internal.cdo.object;
import org.eclipse.emf.cdo.CDODeltaNotification;
import org.eclipse.emf.cdo.CDOObject;
import org.eclipse.emf.cdo.common.id.CDOID;
import org.eclipse.emf.cdo.common.revision.delta.CDORevisionDelta;
import org.eclipse.emf.cdo.util.CDOUtil;
import org.eclipse.emf.cdo.util.ObjectNotFoundException;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.ECollections;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.spi.cdo.InternalCDOObject;
import org.eclipse.emf.spi.cdo.InternalCDOView;
/**
* @author Simon McDuff
* @since 2.0
*/
public class CDODeltaNotificationImpl extends ENotificationImpl implements CDODeltaNotification
{
private CDORevisionDelta revisionDelta;
public CDODeltaNotificationImpl(InternalEObject notifier, int eventType, EStructuralFeature feature, Object oldValue,
Object newValue)
{
super(getEObject(notifier), eventType, feature, oldValue, newValue);
}
public CDODeltaNotificationImpl(InternalEObject notifier, int eventType, int featureID, Object oldValue,
Object newValue, int position)
{
super(getEObject(notifier), eventType, featureID, oldValue, newValue, position);
}
public CDODeltaNotificationImpl(InternalEObject notifier, int eventType, int featureID, Object oldValue,
Object newValue)
{
super(getEObject(notifier), eventType, featureID, oldValue, newValue);
}
@Override
public Object getNewValue()
{
Object object = super.getNewValue();
return adapt(object);
}
@Override
public Object getOldValue()
{
Object oldValue = super.getOldValue();
if (oldValue == null && getEventType() == Notification.REMOVE_MANY)
{
Object feature = getFeature();
if (feature instanceof EStructuralFeature)
{
EStructuralFeature structuralFeature = (EStructuralFeature)feature;
if (structuralFeature.isMany())
{
return ECollections.emptyEList();
}
}
}
return adapt(oldValue);
}
public Object adapt(Object object)
{
if (object instanceof CDOID)
{
CDOID id = (CDOID)object;
try
{
InternalCDOView view = getCDOObject().cdoView();
object = view.getObject(id, true);
}
catch (ObjectNotFoundException ex)
{
object = null;
}
}
if (object instanceof CDOObject)
{
object = CDOUtil.getEObject((EObject)object);
}
return object;
}
public boolean hasNext()
{
return next != null;
}
public CDORevisionDelta getRevisionDelta()
{
return revisionDelta;
}
public void setRevisionDelta(CDORevisionDelta revisionDelta)
{
this.revisionDelta = revisionDelta;
}
@Override
public boolean merge(Notification notification)
{
// Do not merge at all. See bug 317144.
return false;
}
private InternalCDOObject getCDOObject()
{
return (InternalCDOObject)CDOUtil.getCDOObject((EObject)getNotifier());
}
private static InternalEObject getEObject(InternalEObject notifier)
{
return (InternalEObject)CDOUtil.getEObject(notifier);
}
}
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