001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 *  Unless required by applicable law or agreed to in writing, software
012 *  distributed under the License is distributed on an "AS IS" BASIS,
013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 *  See the License for the specific language governing permissions and
015 *  limitations under the License.
016 *
017 */
018package org.apache.bcel.util;
019
020/**
021 * Used for BCEL comparison strategy
022 *
023 * @since 5.2
024 */
025public interface BCELComparator {
026
027    /**
028     * Compare two objects and return what THIS.equals(THAT) should return
029     *
030     * @param THIS
031     * @param THAT
032     * @return true if and only if THIS equals THAT
033     */
034    boolean equals( Object THIS, Object THAT );
035
036
037    /**
038     * Return hashcode for THIS.hashCode()
039     *
040     * @param THIS
041     * @return hashcode for THIS.hashCode()
042     */
043    int hashCode( Object THIS );
044}