| /******************************************************************************* |
| * Copyright (c) 2004-2008 Gabor Bergmann and Daniel Varro |
| * 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: |
| * Gabor Bergmann - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.network; |
| |
| /** |
| * Indicates whether a propagated update event signals the insertion or deletion |
| * of an element |
| * |
| * @author Gabor Bergmann |
| * |
| */ |
| public enum Direction { |
| INSERT, REVOKE; |
| |
| public Direction opposite() { |
| switch (this) { |
| case INSERT: |
| return REVOKE; |
| case REVOKE: |
| return INSERT; |
| default: |
| return INSERT; |
| } |
| } |
| } |
