/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
* 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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.uml.tools.helper;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.emf.databinding.EMFProperties;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.papyrus.uml.tools.databinding.PapyrusObservableValue;
/**
* A Helper class for UML Databinding
*
* @author Camille Letavernier
*/
public class UMLDatabindingHelper {
/**
* Returns an IObservableValue for the given feature and EObject
*
* If the EditingDomain is set, the IObservableValue will use the Papyrus ServiceEdit ;
* otherwise, a standard EMFObservableValue will be used
*
* @param source
* The EObject to observe
* @param feature
* The feature to observe
* @param domain
* The editing domain on which the commands will be executed. If null, direct
* object modifications will be used.
* @return
* The IObservableValue
*/
public static IObservableValue getObservableValue(EObject source, EStructuralFeature feature, EditingDomain domain) {
return domain == null ? EMFProperties.value(feature).observe(source) : new PapyrusObservableValue(source, feature, domain);
}
}