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Java > Open Source Codes > org > quartz > examples > example1 > HelloJob


1 /*
2  * Copyright 2005 OpenSymphony
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5  * use this file except in compliance with the License. You may obtain a copy
6  * 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, WITHOUT
12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13  * License for the specific language governing permissions and limitations
14  * under the License.
15  *
16  */
17
18 package org.quartz.examples.example1;
19
20 import java.util.Date JavaDoc;
21
22 import org.apache.commons.logging.Log;
23 import org.apache.commons.logging.LogFactory;
24 import org.quartz.Job;
25 import org.quartz.JobExecutionContext;
26 import org.quartz.JobExecutionException;
27
28 /**
29  * <p>
30  * This is just a simple job that says "Hello" to the world.
31  * </p>
32  *
33  * @author Bill Kratzer
34  */
35 public class HelloJob implements Job {
36
37     private static Log _log = LogFactory.getLog(HelloJob.class);
38
39     /**
40      * <p>
41      * Empty constructor for job initilization
42      * </p>
43      * <p>
44      * Quartz requires a public empty constructor so that the
45      * scheduler can instantiate the class whenever it needs.
46      * </p>
47      */
48     public HelloJob() {
49     }
50
51     /**
52      * <p>
53      * Called by the <code>{@link org.quartz.Scheduler}</code> when a
54      * <code>{@link org.quartz.Trigger}</code> fires that is associated with
55      * the <code>Job</code>.
56      * </p>
57      *
58      * @throws JobExecutionException
59      * if there is an exception while executing the job.
60      */
61     public void execute(JobExecutionContext context)
62         throws JobExecutionException {
63
64         // Say Hello to the World and display the date/time
65 _log.info("Hello World! - " + new Date JavaDoc());
66     }
67
68 }
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