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/*
* Copyright (c) 2008-2012, 2014 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.cdo.internal.common.revision.delta;
import org.eclipse.emf.cdo.common.protocol.CDODataInput;
import org.eclipse.emf.cdo.common.protocol.CDODataOutput;
import org.eclipse.emf.cdo.common.revision.CDORevision;
import org.eclipse.emf.cdo.common.revision.delta.CDOFeatureDelta;
import org.eclipse.emf.cdo.spi.common.revision.CDOReferenceAdjuster;
import org.eclipse.emf.cdo.spi.common.revision.InternalCDOFeatureDelta;
import org.eclipse.net4j.util.CheckUtil;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;
import java.io.IOException;
import java.text.MessageFormat;
/**
* @author Simon McDuff
*/
public abstract class CDOFeatureDeltaImpl implements InternalCDOFeatureDelta
{
private EStructuralFeature feature;
protected CDOFeatureDeltaImpl(EStructuralFeature feature)
{
CheckUtil.checkArg(feature, "feature");
this.feature = feature;
}
public CDOFeatureDeltaImpl(CDODataInput in, EClass eClass) throws IOException
{
int featureID = in.readXInt();
feature = eClass.getEStructuralFeature(featureID);
CheckUtil.checkState(feature, "feature");
}
public void write(CDODataOutput out, EClass eClass) throws IOException
{
out.writeXInt(getType().ordinal());
out.writeXInt(eClass.getFeatureID(feature));
}
public EStructuralFeature getFeature()
{
return feature;
}
@Deprecated
public void apply(CDORevision revision)
{
applyTo(revision);
}
public boolean isStructurallyEqual(Object obj)
{
if (obj == this)
{
return true;
}
if (obj instanceof CDOFeatureDelta)
{
CDOFeatureDelta that = (CDOFeatureDelta)obj;
return feature.equals(that.getFeature()) && getType().equals(that.getType());
}
return false;
}
@Override
public String toString()
{
String additional = toStringAdditional();
if (additional == null)
{
return MessageFormat.format("CDOFeatureDelta[{0}, {1}]", feature.getName(), getType());
}
return MessageFormat.format("CDOFeatureDelta[{0}, {1}, {2}]", feature.getName(), getType(), additional);
}
public abstract boolean adjustReferences(CDOReferenceAdjuster referenceAdjuster);
protected abstract String toStringAdditional();
}
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