org.eclipse.viatra2.gtasm.patternmatcher/src/org/eclipse/viatra2/gtasm/patternmatcher/extension/IPatternMatcherFactory.java

/*******************************************************************************
 * Copyright (c) 2004-2008 Peter Pasztor, Akos Horvath, Gergely Varro, Istvan Rath 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:
 *    Peter Pasztor, Akos Horvath, Gergely Varro, Istvan Rath - initial API and implementation
 *******************************************************************************/

package org.eclipse.viatra2.gtasm.patternmatcher.extension;


import org.eclipse.viatra2.gtasm.interpreter.exception.ViatraTransformationException;
import org.eclipse.viatra2.gtasm.interpreter.executionEnvironment.IExecutionEnvironment;
import org.eclipse.viatra2.gtasm.patternmatcher.patterns.IPatternMatcher;
import org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.gt.GTPattern;

/**
 * Extension point for the pattern matcher
 * 
 * @author Akos Horvath
 * 
 */
public interface IPatternMatcherFactory {

	/**
	 * Returns a pattern matcher for the input GTPattern
	 * 
	 * @param env
	 *            the execution environment representing the context
	 * @param pattern
	 *            The patter for which the matcher is created
	 * @return IPatternMatcher
	 * @throws ViatraTransformationException
	 */
	public IPatternMatcher getPatternMatcher(IExecutionEnvironment env,
			GTPattern pattern) throws ViatraTransformationException;

}