001/*
002 * Java Genetic Algorithm Library (jenetics-7.1.0).
003 * Copyright (c) 2007-2022 Franz Wilhelmstötter
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * 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 * Author:
018 *    Franz Wilhelmstötter (franz.wilhelmstoetter@gmail.com)
019 */
020package io.jenetics.internal.util;
021
022/**
023 * Comparator for int values.
024 *
025 * @author <a href="mailto:franz.wilhelmstoetter@gmail.com">Franz Wilhelmstötter</a>
026 * @version 4.1
027 * @since 4.1
028 */
029@FunctionalInterface
030public interface IntComparator {
031
032        /**
033         * Compares its two arguments for order. Returns a negative integer, zero,
034         * or a positive integer as the first argument is less than, equal to, or
035         * greater than the second.
036         *
037         * @param i the first integer
038         * @param j the second integer
039         * @return a negative integer, zero, or a positive integer as the first
040         *         argument is less than, equal to, or greater than the second
041         */
042        int compare(final int i, final int j);
043
044}