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/*
* Copyright (c) 2008-2013 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
* Simon McDuff - bug 201266
*/
package org.eclipse.emf.cdo.common.revision.delta;
import org.eclipse.emf.cdo.common.branch.CDOBranchPoint;
import org.eclipse.emf.cdo.common.branch.CDOBranchVersion;
import org.eclipse.emf.cdo.common.revision.CDORevisable;
import org.eclipse.emf.cdo.common.revision.CDORevision;
import org.eclipse.emf.cdo.common.revision.CDORevisionData;
import org.eclipse.emf.cdo.common.revision.CDORevisionKey;
import org.eclipse.emf.cdo.internal.common.revision.delta.CDODetachedRevisionDeltaImpl;
import org.eclipse.net4j.util.Predicate;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;
import java.util.List;
/**
* Represents the change delta between two {@link CDORevision revisions} of a CDO object. The detailed
* {@link CDOFeatureDelta feature deltas} are returned by the {@link #getFeatureDeltas()} method.
*
* @author Eike Stepper
* @since 2.0
* @noextend This interface is not intended to be extended by clients.
* @noimplement This interface is not intended to be implemented by clients.
* @apiviz.landmark
* @apiviz.has {@link org.eclipse.emf.ecore.EClass}
* @apiviz.has {@link org.eclipse.emf.cdo.common.revision.CDORevisable} oneway - - target
* @apiviz.composedOf {@link CDOFeatureDelta}
*/
public interface CDORevisionDelta extends CDORevisionKey
{
/**
* This constant is only passed into conflict resolvers to indicate that a conflict was caused by remote detachment of
* an object. Calling any method on this marker instance will result in an {@link UnsupportedOperationException} being
* thrown.
*
* @since 4.0
*/
public static final CDORevisionDelta DETACHED = new CDODetachedRevisionDeltaImpl();
/**
* @since 3.0
*/
public EClass getEClass();
/**
* @since 4.0
*/
public CDORevisable getTarget();
/**
* @since 4.2
*/
public int size();
/**
* @since 3.0
*/
public boolean isEmpty();
/**
* @since 4.0
*/
public CDORevisionDelta copy();
/**
* @since 4.0
*/
public CDOFeatureDelta getFeatureDelta(EStructuralFeature feature);
public List<CDOFeatureDelta> getFeatureDeltas();
/**
* Applies the {@link #getFeatureDeltas() feature deltas} in this revision delta to the {@link CDORevisionData data}
* of the given revision.
* <p>
* The system data of the given revision, e.g. {@link CDOBranchPoint branch point} or {@link CDOBranchVersion branch
* version} of the given revision are <b>not</b> modified.
*/
public void apply(CDORevision revision);
public void accept(CDOFeatureDeltaVisitor visitor);
/**
* @since 4.2
*/
public void accept(CDOFeatureDeltaVisitor visitor, Predicate<EStructuralFeature> filter);
}
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