001/*
002 * Copyright 2002-2017 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.scheduling.config;
018
019import org.springframework.util.Assert;
020
021/**
022 * Holder class defining a {@code Runnable} to be executed as a task, typically at a
023 * scheduled time or interval. See subclass hierarchy for various scheduling approaches.
024 *
025 * @author Chris Beams
026 * @author Juergen Hoeller
027 * @since 3.2
028 */
029public class Task {
030
031        private final Runnable runnable;
032
033
034        /**
035         * Create a new {@code Task}.
036         * @param runnable the underlying task to execute
037         */
038        public Task(Runnable runnable) {
039                Assert.notNull(runnable, "Runnable must not be null");
040                this.runnable = runnable;
041        }
042
043
044        /**
045         * Return the underlying task.
046         */
047        public Runnable getRunnable() {
048                return this.runnable;
049        }
050
051
052        @Override
053        public String toString() {
054                return this.runnable.toString();
055        }
056
057}