    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 *   https://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019package org.apache.bcel.util;
    020
    021/**
    022 * Used for BCEL comparison strategy.
    023 *
    024 * @param <T> What type we are comparing.
    025 * @since 5.2
    026 */
    027public interface BCELComparator<T> {
    028
    029    /**
    030     * Compares two objects and return what a.equals(b) should return.
    031     *
    032     * @param a an object.
    033     * @param b an object to be compared with {@code a} for equality.
    034     * @return {@code true} if the arguments are equal to each other and {@code false} otherwise.
    035     */
    036    boolean equals(T a, T b);
    037
    038    /**
    039     * Gets the hash code for o.hashCode().
    040     *
    041     * @param o the object.
    042     * @return hash code for o.hashCode().
    043     */
    044    int hashCode(T o);
    045}