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/*******************************************************************************
* Copyright (c) 2012, 2016 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.compare.internal.spec;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.BasicMonitor;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.compare.ComparePackage;
import org.eclipse.emf.compare.Diff;
import org.eclipse.emf.compare.DifferenceState;
import org.eclipse.emf.compare.Match;
import org.eclipse.emf.compare.impl.ReferenceChangeImpl;
import org.eclipse.emf.compare.merge.IMerger;
import org.eclipse.emf.compare.utils.Objects;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
/**
* This specialization of the {@link ReferenceChangeImpl} class allows us to define the derived features and
* operations implementations.
*
* @author <a href="mailto:laurent.goubet@obeo.fr">Laurent Goubet</a>
*/
public class ReferenceChangeSpec extends ReferenceChangeImpl {
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.impl.DiffImpl#copyLeftToRight()
* @deprecated Use
* {@link org.eclipse.emf.compare.merge.IMerger#copyLeftToRight(org.eclipse.emf.compare.Diff, org.eclipse.emf.common.util.Monitor)}
* instead. See javadoc of IMerger.Registry for usage instructions.
*/
@Deprecated
@Override
public void copyLeftToRight() {
/*
* This is not extensible : we create a registry for each call and use the default mergers. This
* implementation is merely a placeholder to avoid API breakage. Please refer to IMerger.Registry for
* merging instructions.
*/
final IMerger merger = IMerger.RegistryImpl.createStandaloneInstance().getHighestRankingMerger(this);
merger.copyLeftToRight(this, new BasicMonitor());
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.impl.DiffImpl#copyRightToLeft()
* @deprecated Use
* {@link org.eclipse.emf.compare.merge.IMerger#copyRightToLeft(org.eclipse.emf.compare.Diff, org.eclipse.emf.common.util.Monitor)}
* instead. See javadoc of IMerger.Registry for usage instructions.
*/
@Deprecated
@Override
public void copyRightToLeft() {
/*
* This is not extensible : we always use the default merger instead of querying the registry. This
* implementation is merely a placeholder to avoid API breakage. Please refer to IMerger.Registry for
* merging instructions.
*/
final IMerger merger = IMerger.RegistryImpl.createStandaloneInstance().getHighestRankingMerger(this);
merger.copyRightToLeft(this, new BasicMonitor());
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.impl.DiffImpl#discard()
*/
@Override
public void discard() {
setState(DifferenceState.DISCARDED);
// Should we also discard equivalent diffs? And diffs that require this one?
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.impl.DiffImpl#toString()
*/
@SuppressWarnings("nls")
@Override
public String toString() {
// @formatter:off
StringBuilder b = new StringBuilder();
return b.append(getState()).append(' ').append(getSource()).append(' ').append(getKind()).append(' ')
.append(Objects.toStringHelper(this)
.add("reference",
getReference().getEContainingClass().getName() + "."
+ getReference().getName())
.add("value", EObjectUtil.getLabel(getValue()))
.add("parentMatch", getMatch().toString())
.add("match of value", getMatch().getComparison().getMatch(getValue())))
.toString();
// @formatter:on
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.impl.DiffImpl#basicGetMatch()
*/
@Override
public Match basicGetMatch() {
if (eContainer() instanceof Match) {
return (Match)eContainer();
}
return null;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.impl.DiffImpl#setMatch(org.eclipse.emf.compare.Match)
*/
@Override
public void setMatch(Match newMatch) {
Match oldMatch = basicGetMatch();
if (newMatch != null) {
EList<Diff> differences = newMatch.getDifferences();
differences.add(this);
eNotify(new ENotificationImpl(this, Notification.SET, ComparePackage.DIFF__MATCH, oldMatch,
newMatch));
} else if (eContainer() instanceof Match) {
EList<Diff> differences = ((Match)eContainer()).getDifferences();
differences.remove(this);
eNotify(new ENotificationImpl(this, Notification.UNSET, ComparePackage.DIFF__MATCH, oldMatch,
newMatch));
}
}
}
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