| /******************************************************************************* |
| * Copyright (c) 2009, 2018 SAP AG and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v20.html |
| * |
| * Contributors: |
| * SAP AG - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.ocl.examples.impactanalyzer.instanceScope; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.ocl.ecore.OCLExpression; |
| import org.eclipse.ocl.examples.impactanalyzer.util.AnnotatedEObject; |
| |
| public class EmptyResultNavigationStep extends AbsoluteNavigationStep { |
| |
| public EmptyResultNavigationStep(OCLExpression debugInfo) { |
| super(null, debugInfo); |
| setAlwaysEmpty(); |
| } |
| |
| @Override |
| public String contentToString(Map<NavigationStep, Integer> visited, int indent) { |
| return "<empty>"; |
| } |
| |
| @Override |
| protected Set<AnnotatedEObject> navigate(AnnotatedEObject fromObject, |
| TracebackCache cache, Notification changeEvent) { |
| return Collections.emptySet(); |
| } |
| } |
