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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  package org.springframework.batch.sample.loop;
17  
18  import org.springframework.batch.core.ExitStatus;
19  import org.springframework.batch.core.StepExecution;
20  import org.springframework.batch.core.listener.StepExecutionListenerSupport;
21  import org.springframework.batch.sample.domain.trade.internal.GeneratingTradeItemReader;
22  import org.springframework.beans.factory.InitializingBean;
23  import org.springframework.util.Assert;
24  
25  /**
26   * This listener resets the count of its GeneratingTradeItemReader after the
27   * step.
28   * 
29   * @author Dan Garrette
30   * @since 2.0
31   */
32  public class GeneratingTradeResettingListener extends StepExecutionListenerSupport implements InitializingBean {
33  
34  	private GeneratingTradeItemReader reader;
35  
36  	public ExitStatus afterStep(StepExecution stepExecution) {
37  		this.reader.resetCounter();
38  		return null;
39  	}
40  
41  	public void setReader(GeneratingTradeItemReader reader) {
42  		this.reader = reader;
43  	}
44  
45  	public void afterPropertiesSet() throws Exception {
46  		Assert.notNull(this.reader, "The 'reader' must be set.");
47  	}
48  }