| /******************************************************************************* |
| * Copyright (c) 2004-2008 Akos Horvath, Gergely Varro 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: |
| * Akos Horvath, Gergely Varro - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.viatra2.gtasm.patternmatcher.impl.patternmatcher.internal.operation;
|
|
|
| import org.eclipse.viatra2.gtasm.patternmatcher.exceptions.PatternMatcherRuntimeException; |
| import org.eclipse.viatra2.gtasm.patternmatcher.impl.patternmatcher.internal.MatchingFrame; |
| |
|
|
| abstract public class CheckOperation extends SearchPlanOperation {
|
| private boolean hasBeenExecuted;
|
|
|
| public CheckOperation() {
|
| hasBeenExecuted = false;
|
| }
|
|
|
| public void preprocess(MatchingFrame frame) {
|
| hasBeenExecuted = false;
|
| }
|
|
|
| final public boolean execute(MatchingFrame frame)
|
| throws PatternMatcherRuntimeException {
|
| hasBeenExecuted = (hasBeenExecuted ? false : check(frame));
|
| return hasBeenExecuted;
|
| }
|
|
|
| public void postprocess(MatchingFrame frame) {
|
| return;
|
| }
|
|
|
| abstract protected boolean check(MatchingFrame frame)
|
| throws PatternMatcherRuntimeException;
|
|
|
| public boolean update(MatchingFrame frame) throws PatternMatcherRuntimeException{
|
| try {
|
| hasBeenExecuted = false;
|
| return execute(frame);
|
| } catch (PatternMatcherRuntimeException e) {
|
| |
| e.printStackTrace();
|
| return false;
|
| }
|
| }
|
| }
|
