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.jca.work;
018
019import javax.resource.spi.work.Work;
020
021import org.springframework.util.Assert;
022
023/**
024 * Simple Work adapter that delegates to a given Runnable.
025 *
026 * @author Juergen Hoeller
027 * @since 2.0.3
028 * @see javax.resource.spi.work.Work
029 * @see Runnable
030 */
031public class DelegatingWork implements Work {
032
033        private final Runnable delegate;
034
035
036        /**
037         * Create a new DelegatingWork.
038         * @param delegate the Runnable implementation to delegate to
039         */
040        public DelegatingWork(Runnable delegate) {
041                Assert.notNull(delegate, "Delegate must not be null");
042                this.delegate = delegate;
043        }
044
045        /**
046         * Return the wrapped Runnable implementation.
047         */
048        public final Runnable getDelegate() {
049                return this.delegate;
050        }
051
052
053        /**
054         * Delegates execution to the underlying Runnable.
055         */
056        @Override
057        public void run() {
058                this.delegate.run();
059        }
060
061        /**
062         * This implementation is empty, since we expect the Runnable
063         * to terminate based on some specific shutdown signal.
064         */
065        @Override
066        public void release() {
067        }
068
069}