/* * Copyright (c) OSGi Alliance (2014). All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.osgi.util.function; import org.osgi.annotation.versioning.ConsumerType; /** * A predicate that accepts a single argument and produces a boolean result. * * <p> * This is a functional interface and can be used as the assignment target for a * lambda expression or method reference. * * @param <T> The type of the predicate input. * * @ThreadSafe * @author $Id: 0c2c61f78bede4e2afc4278af4f5e4b873769347 $ */ @ConsumerType public interface Predicate<T> { /** * Evaluates this predicate on the specified argument. * * @param t The input to this predicate. * @return {@code true} if the specified argument is accepted by this * predicate; {@code false} otherwise. */ boolean test(T t); }