/*******************************************************************************
* Copyright (c) 2013, 2014 Willink Transformations 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:
* E.D.Willink - initial API and implementation
*******************************************************************************/
package org.eclipse.ocl.pivot.internal.library;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.ocl.pivot.evaluation.Executor;
import org.eclipse.ocl.pivot.ids.TypeId;
import org.eclipse.ocl.pivot.library.AbstractProperty;
public class UnboxedCompositionProperty extends AbstractProperty
{
protected @NonNull String containmentFeatureName;
public UnboxedCompositionProperty(@NonNull String containmentFeatureName) {
this.containmentFeatureName = containmentFeatureName;
}
@Override
public @Nullable Object evaluate(@NonNull Executor executor, @NonNull TypeId returnTypeId, @Nullable Object sourceValue) {
assert sourceValue != null;
EObject eObject = (EObject)sourceValue;
EObject eContainer = eObject.eContainer();
if (eContainer == null) {
return null; // No container
}
EReference eContainmentFeature = eObject.eContainmentFeature();
if (!containmentFeatureName.equals(eContainmentFeature.getName())) {
return null; // Contained but by some other property
}
return eContainer;
}
}