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1   /*
2    * Copyright 2006-2013 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  package org.springframework.batch.core.configuration.support;
17  
18  import org.springframework.batch.core.Job;
19  import org.springframework.batch.core.configuration.JobFactory;
20  
21  /**
22   * A {@link JobFactory} that just keeps a reference to a {@link Job}. It never
23   * modifies its {@link Job}.
24   *
25   * @author Dave Syer
26   *
27   */
28  public class ReferenceJobFactory implements JobFactory {
29  
30  	private Job job;
31  
32  	/**
33  	 * @param job the {@link Job} to return from {@link #createJob()}.
34  	 */
35  	public ReferenceJobFactory(Job job) {
36  		this.job = job;
37  	}
38  
39  	/**
40  	 * Just return the instance passed in on initialization.
41  	 *
42  	 * @see JobFactory#createJob()
43  	 */
44  	@Override
45  	public final Job createJob() {
46  		return job;
47  	}
48  
49  	/**
50  	 * Just return the name of instance passed in on initialization.
51  	 *
52  	 * @see JobFactory#getJobName()
53  	 */
54  	@Override
55  	public String getJobName() {
56  		return job.getName();
57  	}
58  
59  }