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Java > Open Source Codes > org > springframework > scheduling > commonj > DelegatingTimerListener


1 /*
2  * Copyright 2002-2005 the original author or authors.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */

16
17 package org.springframework.scheduling.commonj;
18
19 import commonj.timers.Timer;
20 import commonj.timers.TimerListener;
21
22 import org.springframework.util.Assert;
23
24 /**
25  * Simple TimerListener adapter that delegates to a given Runnable.
26  *
27  * @author Juergen Hoeller
28  * @since 2.0
29  * @see commonj.timers.TimerListener
30  * @see java.lang.Runnable
31  */

32 public class DelegatingTimerListener implements TimerListener {
33
34     private final Runnable JavaDoc runnable;
35
36
37     /**
38      * Create a new DelegatingTimerListener.
39      * @param runnable the Runnable implementation to delegate to
40      */

41     public DelegatingTimerListener(Runnable JavaDoc runnable) {
42         Assert.notNull(runnable, "Runnable is required");
43         this.runnable = runnable;
44     }
45
46
47     /**
48      * Delegates execution to the underlying Runnable.
49      */

50     public void timerExpired(Timer timer) {
51         this.runnable.run();
52     }
53
54 }
55
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