1 /*
2 * Copyright 2006-2007 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;
17
18 /**
19 * Interface for obtaining the next {@link JobParameters} in a sequence.
20 *
21 * @author Dave Syer
22 * @author Lucas Ward
23 * @since 2.0
24 */
25 public interface JobParametersIncrementer {
26
27 /**
28 * Increment the provided parameters. If the input is empty, then this
29 * should return a bootstrap or initial value to be used on the first
30 * instance of a job.
31 *
32 * @param parameters the last value used
33 * @return the next value to use
34 */
35 JobParameters getNext(JobParameters parameters);
36
37 }