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.commonj; 018 019import commonj.work.Work; 020 021import org.springframework.scheduling.SchedulingAwareRunnable; 022import org.springframework.util.Assert; 023 024/** 025 * Simple Work adapter that delegates to a given Runnable. 026 * 027 * @author Juergen Hoeller 028 * @since 2.0 029 * @deprecated as of 5.1, in favor of EE 7's 030 * {@link org.springframework.scheduling.concurrent.DefaultManagedTaskExecutor} 031 */ 032@Deprecated 033public class DelegatingWork implements Work { 034 035 private final Runnable delegate; 036 037 038 /** 039 * Create a new DelegatingWork. 040 * @param delegate the Runnable implementation to delegate to 041 * (may be a SchedulingAwareRunnable for extended support) 042 * @see org.springframework.scheduling.SchedulingAwareRunnable 043 * @see #isDaemon() 044 */ 045 public DelegatingWork(Runnable delegate) { 046 Assert.notNull(delegate, "Delegate must not be null"); 047 this.delegate = delegate; 048 } 049 050 /** 051 * Return the wrapped Runnable implementation. 052 */ 053 public final Runnable getDelegate() { 054 return this.delegate; 055 } 056 057 058 /** 059 * Delegates execution to the underlying Runnable. 060 */ 061 @Override 062 public void run() { 063 this.delegate.run(); 064 } 065 066 /** 067 * This implementation delegates to 068 * {@link org.springframework.scheduling.SchedulingAwareRunnable#isLongLived()}, 069 * if available. 070 */ 071 @Override 072 public boolean isDaemon() { 073 return (this.delegate instanceof SchedulingAwareRunnable && 074 ((SchedulingAwareRunnable) this.delegate).isLongLived()); 075 } 076 077 /** 078 * This implementation is empty, since we expect the Runnable 079 * to terminate based on some specific shutdown signal. 080 */ 081 @Override 082 public void release() { 083 } 084 085}