| /******************************************************************************* |
| * Copyright (c) 2016 EclipseSource Muenchen GmbH 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: |
| * Alexandra Buzila - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.emf.compare.uml2.rcp.ui.internal.accessor; |
| |
| import org.eclipse.emf.common.notify.AdapterFactory; |
| import org.eclipse.emf.compare.AttributeChange; |
| import org.eclipse.emf.compare.Diff; |
| import org.eclipse.emf.compare.Match; |
| import org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.impl.SingleStructuralFeatureAccessorImpl; |
| import org.eclipse.emf.compare.rcp.ui.internal.util.MergeViewerUtil; |
| import org.eclipse.emf.compare.rcp.ui.mergeviewer.IMergeViewer.MergeViewerSide; |
| import org.eclipse.emf.compare.uml2.internal.MultiplicityElementChange; |
| import org.eclipse.emf.compare.utils.ReferenceUtil; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EReference; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| |
| /** |
| * Change accessor for {@link MultiplicityElementChange MultiplicityElementChanges} whose prime refining is an |
| * {@link AttributeChange}. |
| * |
| * @author Alexandra Buzila |
| */ |
| @SuppressWarnings("restriction") |
| public class MultiplicityElementAttributeChangeAccessor extends SingleStructuralFeatureAccessorImpl { |
| |
| /** |
| * A specific {@link SingleStructuralFeatureAccessorImpl} for {@link MultiplicityElementChange |
| * MultiplicityElementChanges}. |
| * |
| * @param adapterFactory |
| * the adapter factory used to create the accessor |
| * @param diff |
| * the diff associated with this accessor |
| * @param side |
| * the side of the accessor |
| */ |
| public MultiplicityElementAttributeChangeAccessor(AdapterFactory adapterFactory, Diff diff, |
| MergeViewerSide side) { |
| super(adapterFactory, diff, side); |
| } |
| |
| @Override |
| protected EStructuralFeature getAffectedFeature(Diff diff) { |
| Diff primeRefining = diff.getPrimeRefining(); |
| return MergeViewerUtil.getAffectedFeature(primeRefining); |
| } |
| |
| @Override |
| public EObject getEObject(MergeViewerSide side) { |
| Match match = getInitialDiff().getMatch(); |
| EObject multiplicityElement = MergeViewerUtil.getEObject(match, side); |
| if (multiplicityElement == null) { |
| return null; |
| } |
| MultiplicityElementChange change = (MultiplicityElementChange)getInitialDiff(); |
| // the lowerValue/upperValue feature affected by the diff |
| EReference multiplicityElementFeature = change.getDiscriminant().eContainmentFeature(); |
| return (EObject)ReferenceUtil.safeEGet(multiplicityElement, multiplicityElementFeature); |
| } |
| |
| } |