| /* |
| * Copyright (c) 2003, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM - Initial API and implementation |
| * |
| * $Id: SupersetEObjectEList.java,v 1.3.2.3 2004/09/07 19:47:12 khussey Exp $ |
| */ |
| package org.eclipse.uml2.internal.util; |
| |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.common.notify.NotificationChain; |
| import org.eclipse.emf.common.util.EList; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| import org.eclipse.emf.ecore.InternalEObject; |
| import org.eclipse.emf.ecore.util.EObjectEList; |
| |
| /** |
| * |
| */ |
| public class SupersetEObjectEList |
| extends EObjectEList { |
| |
| public static class Unsettable |
| extends SupersetEObjectEList { |
| |
| protected boolean isSet; |
| |
| public Unsettable(Class dataClass, InternalEObject owner, |
| int featureID, int[] subsetFeatureIDs) { |
| super(dataClass, owner, featureID, subsetFeatureIDs); |
| } |
| |
| public Unsettable(Class dataClass, InternalEObject owner, |
| int featureID, int subsetFeatureID) { |
| this(dataClass, owner, featureID, new int[]{subsetFeatureID}); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.emf.common.util.BasicEList#didChange() |
| */ |
| protected void didChange() { |
| isSet = true; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.emf.common.notify.impl.NotifyingListImpl#isSet() |
| */ |
| public boolean isSet() { |
| return isSet; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.emf.ecore.EStructuralFeature.Setting#unset() |
| */ |
| public void unset() { |
| super.unset(); |
| |
| if (isNotificationRequired()) { |
| boolean oldIsSet = isSet; |
| isSet = false; |
| |
| owner.eNotify(createNotification(Notification.UNSET, oldIsSet, |
| false)); |
| } else { |
| isSet = false; |
| } |
| } |
| } |
| |
| protected final int[] subsetFeatureIDs; |
| |
| public SupersetEObjectEList(Class dataClass, InternalEObject owner, |
| int featureID, int[] subsetFeatureIDs) { |
| super(dataClass, owner, featureID); |
| |
| this.subsetFeatureIDs = subsetFeatureIDs; |
| } |
| |
| public SupersetEObjectEList(Class dataClass, InternalEObject owner, |
| int featureID, int subsetFeatureID) { |
| this(dataClass, owner, featureID, new int[]{subsetFeatureID}); |
| } |
| |
| protected void subsetRemove(Object object) { |
| |
| for (int i = 0; i < subsetFeatureIDs.length; i++) { |
| EStructuralFeature subsetEStructuralFeature = owner.eClass() |
| .getEStructuralFeature(subsetFeatureIDs[i]); |
| |
| if (subsetEStructuralFeature.isMany()) { |
| ((EList) owner.eGet(subsetEStructuralFeature)).remove(object); |
| } else if (object.equals(owner.eGet(subsetEStructuralFeature))) { |
| owner.eSet(subsetEStructuralFeature, null); |
| } |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.emf.common.util.BasicEList#didRemove(int, |
| * java.lang.Object) |
| */ |
| protected void didRemove(int index, Object oldObject) { |
| super.didRemove(index, oldObject); |
| |
| subsetRemove(oldObject); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.emf.common.notify.impl.NotifyingListImpl#basicSet(int, |
| * java.lang.Object, org.eclipse.emf.common.notify.NotificationChain) |
| */ |
| public NotificationChain basicSet(int index, Object object, |
| NotificationChain notifications) { |
| Object oldObject = data[index]; |
| |
| notifications = super.basicSet(index, object, notifications); |
| |
| if (oldObject != object) { |
| subsetRemove(oldObject); |
| } |
| |
| return notifications; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.util.List#set(int, java.lang.Object) |
| */ |
| public Object set(int index, Object object) { |
| Object result = super.set(index, object); |
| |
| if (result != object) { |
| subsetRemove(result); |
| } |
| |
| return result; |
| } |
| |
| } |