| /******************************************************************************* |
| * Copyright (c) 2009, 2011 SAP AG 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: |
| * SAP AG - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.ocl.examples.eventmanager.filters; |
| |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EReference; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.emf.ecore.resource.ResourceSet; |
| import org.eclipse.ocl.examples.eventmanager.framework.EventManagerTableBased; |
| |
| /** |
| * The Containment filter matches a notification if its |
| * {@link Notification#getFeature()} is an {@link EReference} and |
| * {@link EReference#isContainment()} is true, or if the |
| * {@link Notification#getNotifier()} is not an {@link EObject}, so it might be |
| * a {@link ResourceSet} or a {@link Resource}. |
| * |
| * @author Philipp Berger, Axel Uhl |
| * |
| */ |
| public class ContainmentFilter extends AbstractEventFilter { |
| |
| public ContainmentFilter(boolean negated) { |
| super(negated); |
| } |
| |
| public boolean matchesFor(Notification event) { |
| if (event.getFeature() instanceof EReference) { |
| return ((EReference) event.getFeature()).isContainment(); |
| } else if (!(event.getNotifier() instanceof EObject)) { |
| return true; |
| } |
| return false; |
| |
| } |
| |
| @Override |
| public int hashCode() { |
| return "ContainmentFilterImpl".hashCode() + 31*(isNegated() ? 43 : 0); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| return isNegated() == ((AbstractEventFilter) obj).isNegated(); |
| } |
| |
| @Override |
| public ContainmentFilter clone() { |
| return new ContainmentFilter(isNegated()); |
| |
| } |
| |
| /** |
| * This method will only returns true, the logic is moved to the {@link EventManagerTableBased} |
| * @see org.eclipse.ocl.examples.eventmanager.filters.AbstractEventFilter#getFilterCriterion() |
| */ |
| @Override |
| public Object getFilterCriterion() { |
| return true; |
| } |
| @Override |
| public String toString() { |
| return (isNegated()?"negated ":"") + "containment"; |
| } |
| } // ContainmentFilterImpl |