1 /*
2 * Copyright 2006-2010 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.step.job;
17
18 import org.springframework.batch.core.Job;
19 import org.springframework.batch.core.JobParameters;
20 import org.springframework.batch.core.StepExecution;
21
22 /**
23 * Strategy interface for translating a {@link StepExecution} into
24 * {@link JobParameters}.
25 *
26 * @author Dave Syer
27 *
28 */
29 public interface JobParametersExtractor {
30
31 /**
32 * Extract job parameters from the step execution, for example from the
33 * execution context or other properties.
34 *
35 * @param job a {@link Job}
36 * @param stepExecution a {@link StepExecution}
37 *
38 * @return some {@link JobParameters}
39 */
40 JobParameters getJobParameters(Job job, StepExecution stepExecution);
41
42 }