001/*
002 * Copyright 2002-2012 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.quartz;
018
019import org.quartz.Job;
020import org.quartz.JobExecutionContext;
021import org.quartz.JobExecutionException;
022
023import org.springframework.util.Assert;
024
025/**
026 * Simple Quartz {@link org.quartz.Job} adapter that delegates to a
027 * given {@link java.lang.Runnable} instance.
028 *
029 * <p>Typically used in combination with property injection on the
030 * Runnable instance, receiving parameters from the Quartz JobDataMap
031 * that way instead of via the JobExecutionContext.
032 *
033 * @author Juergen Hoeller
034 * @since 2.0
035 * @see SpringBeanJobFactory
036 * @see org.quartz.Job#execute(org.quartz.JobExecutionContext)
037 */
038public class DelegatingJob implements Job {
039
040        private final Runnable delegate;
041
042
043        /**
044         * Create a new DelegatingJob.
045         * @param delegate the Runnable implementation to delegate to
046         */
047        public DelegatingJob(Runnable delegate) {
048                Assert.notNull(delegate, "Delegate must not be null");
049                this.delegate = delegate;
050        }
051
052        /**
053         * Return the wrapped Runnable implementation.
054         */
055        public final Runnable getDelegate() {
056                return this.delegate;
057        }
058
059
060        /**
061         * Delegates execution to the underlying Runnable.
062         */
063        @Override
064        public void execute(JobExecutionContext context) throws JobExecutionException {
065                this.delegate.run();
066        }
067
068}