/**
 * (C) Copyright IBM Corp. 2010, 2015
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package com.ibm.bi.dml.hops.globalopt.gdfresolve;

import com.ibm.bi.dml.hops.globalopt.RewriteConfig;

public abstract class GDFMismatchHeuristic 
{

	public enum MismatchHeuristicType {
		FIRST,
		BLOCKSIZE_OR_FIRST,
	}
	
	/**
	 * Returns the name of the implementing mismatch heuristic.
	 * 
	 * @return
	 */
	public abstract String getName();
	
	/**
	 * Resolve the mismatch of two given rewrite configurations. This call returns true,
	 * if and only if the new configuration is chosen.
	 * 
	 * @param currRc
	 * @param newRc
	 * @return
	 */
	public abstract boolean resolveMismatch( RewriteConfig currRc, RewriteConfig newRc );
}