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/*****************************************************************************
* Copyright (c) 2016 CEA LIST 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:
* Fanch BONNABESSE (ALL4TEC) fanch.bonnabesse@all4tec.net - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.ui.emf.databinding;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.databinding.EObjectObservableValue;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.transaction.util.TransactionUtil;
/**
* Structured ObservableValue.
*/
public class EObjectStructuredObservableValue extends EMFObservableValue {
/**
* List of child of the ObservableValue.
*/
protected List<EObjectObservableValue> observables = new ArrayList<>();
/**
* The parent of this EObjectStructuredObservableValue.
*/
protected EObjectStructuredObservableValue parent;
/**
* Constructor.
*
* @param eObject
* The EObject to edit.
* @param eStructuralFeature
* The structural feature.
* @param domain
* The current editing domain.
* @param browseFeatures
* The features for the browse.
*/
public EObjectStructuredObservableValue(final EObject eObject, final EStructuralFeature eStructuralFeature, final EditingDomain domain, final boolean browseFeatures, final EObjectStructuredObservableValue parent) {
super(eObject, eStructuralFeature, domain);
this.parent = parent;
if (null != eObject) {
if (browseFeatures) {
browseFeatures(eObject);
}
}
}
/**
* Get the child.
*
* @return The observables.
*/
public List<EObjectObservableValue> getObservables() {
return observables;
}
/**
* Get the parent.
*
* @return The parent.
*/
public EObjectStructuredObservableValue getParent() {
return parent;
}
/**
* Crete the child.
*
* @param eObject
* The parent.
*/
private void browseFeatures(final EObject eObject) {
EList<EStructuralFeature> eStructuralFeatures = eObject.eClass().getEStructuralFeatures();
TransactionalEditingDomain editingDomain = TransactionUtil.getEditingDomain(eObject);
for (EStructuralFeature eStructuralFeature : eStructuralFeatures) {
EObjectObservableValue eObjectObservableValue;
Object eGet = eObject.eGet(eStructuralFeature);
if (eStructuralFeature instanceof EReference && eGet instanceof EObject) {
eObjectObservableValue = new EObjectStructuredObservableValue((EObject) eGet, eStructuralFeature, editingDomain, true, this);
} else {
eObjectObservableValue = new EObjectStructuredObservableValue(eObject, eStructuralFeature, editingDomain, false, this);
}
observables.add(eObjectObservableValue);
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.databinding.EObjectObservableValue#getValueType()
*/
@Override
public Object getValueType() {
Object valueType = super.getValueType();
if (null == valueType && null != eObject) {
valueType = eObject.eClass();
}
return valueType;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.databinding.EObjectObservableValue#dispose()
*/
@Override
public synchronized void dispose() {
for (EObjectObservableValue eObjectObservableValue : observables) {
eObjectObservableValue.dispose();
}
super.dispose();
}
}
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