/*******************************************************************************
* Copyright (c) 2008-2011 Chair for Applied Software Engineering,
* Technische Universitaet Muenchen.
* 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:
******************************************************************************/
package org.eclipse.emf.emfstore.server.model.versioning.operations.impl;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.emfstore.common.model.IdEObjectCollection;
import org.eclipse.emf.emfstore.common.model.ModelElementId;
import org.eclipse.emf.emfstore.common.model.util.ModelUtil;
import org.eclipse.emf.emfstore.server.model.versioning.operations.AbstractOperation;
import org.eclipse.emf.emfstore.server.model.versioning.operations.OperationsFactory;
import org.eclipse.emf.emfstore.server.model.versioning.operations.OperationsPackage;
import org.eclipse.emf.emfstore.server.model.versioning.operations.SingleReferenceOperation;
import org.eclipse.emf.emfstore.server.model.versioning.operations.UnkownFeatureException;
/**
* <!-- begin-user-doc --> An implementation of the model object '
* <em><b>Single Reference Operation</b></em>'. <!-- end-user-doc -->
* <p>
* The following features are implemented:
* <ul>
* <li>{@link org.eclipse.emf.emfstore.server.model.versioning.operations.impl.SingleReferenceOperationImpl#getOldValue <em>Old Value</em>}</li>
* <li>{@link org.eclipse.emf.emfstore.server.model.versioning.operations.impl.SingleReferenceOperationImpl#getNewValue <em>New Value</em>}</li>
* </ul>
* </p>
*
* @generated
*/
public class SingleReferenceOperationImpl extends ReferenceOperationImpl
implements SingleReferenceOperation {
/**
* The cached value of the '{@link #getOldValue() <em>Old Value</em>}' containment reference.
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @see #getOldValue()
* @generated
* @ordered
*/
protected ModelElementId oldValue;
/**
* The cached value of the '{@link #getNewValue() <em>New Value</em>}' containment reference.
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @see #getNewValue()
* @generated
* @ordered
*/
protected ModelElementId newValue;
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
protected SingleReferenceOperationImpl() {
super();
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
protected EClass eStaticClass() {
return OperationsPackage.Literals.SINGLE_REFERENCE_OPERATION;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public ModelElementId getOldValue() {
if (oldValue != null && oldValue.eIsProxy()) {
InternalEObject oldOldValue = (InternalEObject)oldValue;
oldValue = (ModelElementId)eResolveProxy(oldOldValue);
if (oldValue != oldOldValue) {
InternalEObject newOldValue = (InternalEObject)oldValue;
NotificationChain msgs = oldOldValue.eInverseRemove(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE, null, null);
if (newOldValue.eInternalContainer() == null) {
msgs = newOldValue.eInverseAdd(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE, null, msgs);
}
if (msgs != null) msgs.dispatch();
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.RESOLVE, OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE, oldOldValue, oldValue));
}
}
return oldValue;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public ModelElementId basicGetOldValue() {
return oldValue;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetOldValue(ModelElementId newOldValue,
NotificationChain msgs) {
ModelElementId oldOldValue = oldValue;
oldValue = newOldValue;
if (eNotificationRequired()) {
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE, oldOldValue, newOldValue);
if (msgs == null) msgs = notification; else msgs.add(notification);
}
return msgs;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public void setOldValue(ModelElementId newOldValue) {
if (newOldValue != oldValue) {
NotificationChain msgs = null;
if (oldValue != null)
msgs = ((InternalEObject)oldValue).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE, null, msgs);
if (newOldValue != null)
msgs = ((InternalEObject)newOldValue).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE, null, msgs);
msgs = basicSetOldValue(newOldValue, msgs);
if (msgs != null) msgs.dispatch();
}
else if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE, newOldValue, newOldValue));
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public ModelElementId getNewValue() {
if (newValue != null && newValue.eIsProxy()) {
InternalEObject oldNewValue = (InternalEObject)newValue;
newValue = (ModelElementId)eResolveProxy(oldNewValue);
if (newValue != oldNewValue) {
InternalEObject newNewValue = (InternalEObject)newValue;
NotificationChain msgs = oldNewValue.eInverseRemove(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE, null, null);
if (newNewValue.eInternalContainer() == null) {
msgs = newNewValue.eInverseAdd(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE, null, msgs);
}
if (msgs != null) msgs.dispatch();
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.RESOLVE, OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE, oldNewValue, newValue));
}
}
return newValue;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public ModelElementId basicGetNewValue() {
return newValue;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetNewValue(ModelElementId newNewValue,
NotificationChain msgs) {
ModelElementId oldNewValue = newValue;
newValue = newNewValue;
if (eNotificationRequired()) {
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE, oldNewValue, newNewValue);
if (msgs == null) msgs = notification; else msgs.add(notification);
}
return msgs;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public void setNewValue(ModelElementId newNewValue) {
if (newNewValue != newValue) {
NotificationChain msgs = null;
if (newValue != null)
msgs = ((InternalEObject)newValue).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE, null, msgs);
if (newNewValue != null)
msgs = ((InternalEObject)newNewValue).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE, null, msgs);
msgs = basicSetNewValue(newNewValue, msgs);
if (msgs != null) msgs.dispatch();
}
else if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE, newNewValue, newNewValue));
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public NotificationChain eInverseRemove(InternalEObject otherEnd,
int featureID, NotificationChain msgs) {
switch (featureID) {
case OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE:
return basicSetOldValue(null, msgs);
case OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE:
return basicSetNewValue(null, msgs);
}
return super.eInverseRemove(otherEnd, featureID, msgs);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public Object eGet(int featureID, boolean resolve, boolean coreType) {
switch (featureID) {
case OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE:
if (resolve) return getOldValue();
return basicGetOldValue();
case OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE:
if (resolve) return getNewValue();
return basicGetNewValue();
}
return super.eGet(featureID, resolve, coreType);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public void eSet(int featureID, Object newValue) {
switch (featureID) {
case OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE:
setOldValue((ModelElementId)newValue);
return;
case OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE:
setNewValue((ModelElementId)newValue);
return;
}
super.eSet(featureID, newValue);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public void eUnset(int featureID) {
switch (featureID) {
case OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE:
setOldValue((ModelElementId)null);
return;
case OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE:
setNewValue((ModelElementId)null);
return;
}
super.eUnset(featureID);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public boolean eIsSet(int featureID) {
switch (featureID) {
case OperationsPackage.SINGLE_REFERENCE_OPERATION__OLD_VALUE:
return oldValue != null;
case OperationsPackage.SINGLE_REFERENCE_OPERATION__NEW_VALUE:
return newValue != null;
}
return super.eIsSet(featureID);
}
public void apply(IdEObjectCollection project) {
EObject modelElement = project.getModelElement(getModelElementId());
EObject oldModelElement = project.getModelElement(getOldValue());
EObject newModelElement = project.getModelElement(getNewValue());
if (modelElement == null) {
// silently fail
return;
}
EReference reference;
try {
reference = (EReference) this.getFeature(modelElement);
modelElement.eSet(reference, newModelElement);
// keep elements in the project if they are disconnected, if they
// really need to be deleted there will be a
// delete operation
if (reference.isContainer() && newModelElement == null) {
project.addModelElement(modelElement);
} else if (reference.isContainment() && newModelElement == null
&& oldModelElement != null) {
project.addModelElement(oldModelElement);
}
} catch (UnkownFeatureException e) {
// silently fail
return;
}
}
@Override
public String getDescription() {
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append(getName());
// stringBuilder.append(".");
return stringBuilder.toString();
}
@Override
public String getName() {
StringBuilder stringBuilder = new StringBuilder();
if (getNewValue() != null) {
stringBuilder.append("Set ");
} else {
stringBuilder.append("Removed ");
}
stringBuilder.append(featureName);
return stringBuilder.toString();
}
@Override
public AbstractOperation reverse() {
SingleReferenceOperation singleReferenceOperation = OperationsFactory.eINSTANCE
.createSingleReferenceOperation();
reverse(singleReferenceOperation);
if (getOldValue() != null) {
singleReferenceOperation
.setNewValue(ModelUtil.clone(getOldValue()));
}
if (getNewValue() != null) {
singleReferenceOperation
.setOldValue(ModelUtil.clone(getNewValue()));
}
return singleReferenceOperation;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.emfstore.server.model.versioning.operations.ReferenceOperation#getOtherInvolvedModelElements()
*/
@Override
public Set<ModelElementId> getOtherInvolvedModelElements() {
HashSet<ModelElementId> result = new HashSet<ModelElementId>();
ModelElementId newValue = getNewValue();
if (newValue != null) {
result.add(newValue);
}
ModelElementId oldValue = getOldValue();
if (oldValue != null) {
result.add(oldValue);
}
return result;
}
} // SingleReferenceOperationImpl