    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 * @param <T> What type we are comparing.
    023 * @since 5.2
    024 */
    025public interface BCELComparator<T> {
    026
    027    /**
    028     * Compares two objects and return what a.equals(b) should return.
    029     *
    030     * @param a an object.
    031     * @param b an object to be compared with {@code a} for equality.
    032     * @return {@code true} if the arguments are equal to each other and {@code false} otherwise.
    033     */
    034    boolean equals(T a, T b);
    035
    036    /**
    037     * Gets the hash code for o.hashCode()
    038     *
    039     * @param o
    040     * @return hash code for o.hashCode()
    041     */
    042    int hashCode(T o);
    043}