| /******************************************************************************* |
| * Copyright (c) 2013 RCP Vision (http://www.rcp-vision.com) 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: |
| * Lorenzo Bettini - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.emf.parsley.util; |
| |
| import java.util.HashMap; |
| |
| import org.eclipse.emf.common.util.EList; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| import org.eclipse.emf.ecore.util.FeatureMap; |
| |
| import com.google.common.collect.Lists; |
| |
| /** |
| * Keeps the state of an {@link EObject} |
| * |
| * @author Lorenzo Bettini - Initial contribution and API |
| * |
| */ |
| public class EObjectState extends HashMap<EStructuralFeature, Object> { |
| |
| public EObjectState(EObject o) { |
| if (o == null) { |
| return; |
| } |
| |
| for (EStructuralFeature f : o.eClass().getEAllStructuralFeatures()) { |
| if (!f.isChangeable() || f.isDerived()) { |
| continue; |
| } |
| |
| Object eGet = o.eGet(f); |
| if (!(eGet instanceof FeatureMap)) { |
| updateMap(f, eGet); |
| } |
| } |
| } |
| |
| private void updateMap(EStructuralFeature f, Object eGet) { |
| if (eGet instanceof EList<?>) { |
| EList<?> list = (EList<?>) eGet; |
| // make sure to store a copy of the list |
| // so that it will not be automatically cleared in |
| // case of bidirectional relations |
| put(f, Lists.newArrayList(list)); |
| } else { |
| put(f, eGet); |
| } |
| } |
| |
| public void copyStateTo(EObject o) { |
| for (java.util.Map.Entry<EStructuralFeature, Object> e : entrySet()) { |
| o.eSet(e.getKey(), e.getValue()); |
| } |
| } |
| } |