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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  
17  package org.springframework.batch.core.step.item;
18  
19  import org.springframework.batch.core.StepContribution;
20  
21  /**
22   * Interface for providing {@link Chunk}s to be processed, used by the
23   * {@link ChunkOrientedTasklet}
24   * 
25   * @since 2.0
26   * @see ChunkOrientedTasklet
27   */
28  public interface ChunkProvider<T> {
29  
30  	Chunk<T> provide(StepContribution contribution) throws Exception;
31  	
32  	void postProcess(StepContribution contribution, Chunk<T> chunk);
33  	
34  }