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 */
017package org.apache.bcel.util;
018
019/**
020 * Used for BCEL comparison strategy
021 *
022 * @since 5.2
023 */
024public interface BCELComparator {
025
026    /**
027     * Compare two objects and return what THIS.equals(THAT) should return
028     *
029     * @param THIS
030     * @param THAT
031     * @return true if and only if THIS equals THAT
032     */
033    boolean equals(Object THIS, Object THAT);
034
035    /**
036     * Return hash code for THIS.hashCode()
037     *
038     * @param THIS
039     * @return hash code for THIS.hashCode()
040     */
041    int hashCode(Object THIS);
042}