001/*
002 * Java Genetic Algorithm Library (jenetics-7.2.0).
003 * Copyright (c) 2007-2023 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
022import java.util.function.Predicate;
023
024/**
025 * This class contains some common predicates
026 *
027 * @author <a href="mailto:franz.wilhelmstoetter@gmail.com">Franz Wilhelmstötter</a>
028 * @since 3.0
029 * @version 4.3
030 */
031public final class Predicates {
032        private Predicates() {}
033
034        public static final Predicate<Object> TRUE = a -> true;
035
036        /**
037         * Return a predicate, which always return {@code true}.
038         *
039         * @param <T> the predicate type
040         * @return a predicate, which always return {@code true}
041         */
042        @SuppressWarnings("unchecked")
043        public static <T> Predicate<T> True() {
044                return (Predicate<T>)TRUE;
045        }
046}