| /******************************************************************************* |
| * Copyright (c) 2007, 2010 BMW Car IT, Technische Universitaet Muenchen, 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: |
| * BMW Car IT - Initial API and implementation |
| * Technische Universitaet Muenchen - Major refactoring and extension |
| *******************************************************************************/ |
| package org.eclipse.emf.edapt.history.reconstruction; |
| |
| import org.eclipse.emf.ecore.EObject; |
| |
| /** |
| * Composition of two mappings into a transitive mapping |
| * |
| * @author herrmama |
| * @author $Author$ |
| * @version $Rev$ |
| * @levd.rating RED Rev: |
| */ |
| public class CompositeMapping extends MappingBase { |
| |
| /** |
| * Mapping to source metamodel version |
| */ |
| private final MappingBase sourceMapping; |
| |
| /** |
| * Mapping to target metamodel version |
| */ |
| private final MappingBase targetMapping; |
| |
| /** |
| * Constructor |
| */ |
| public CompositeMapping(MappingBase sourceMapping, MappingBase targetMapping) { |
| this.sourceMapping = sourceMapping; |
| this.targetMapping = targetMapping; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public EObject getSource(EObject target) { |
| final EObject element = targetMapping.getSource(target); |
| if (element == null) { |
| return null; |
| } |
| final EObject source = sourceMapping.getTarget(element); |
| return source; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public EObject getTarget(EObject source) { |
| final EObject element = sourceMapping.getSource(source); |
| if (element == null) { |
| return null; |
| } |
| final EObject target = targetMapping.getTarget(element); |
| return target; |
| } |
| } |