/*
    * Copyright 2006-2007 the original author or authors.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *      http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.springframework.batch.sample.loop;
  
  import org.springframework.batch.core.ExitStatus;
  import org.springframework.batch.core.StepExecution;
  import org.springframework.batch.core.listener.StepExecutionListenerSupport;
  import org.springframework.batch.sample.domain.trade.internal.GeneratingTradeItemReader;
  import org.springframework.beans.factory.InitializingBean;
  import org.springframework.util.Assert;
  
  /**
   * This listener resets the count of its GeneratingTradeItemReader after the
   * step.
   * 
   * @author Dan Garrette
   * @since 2.0
   */
  public class GeneratingTradeResettingListener extends StepExecutionListenerSupport implements InitializingBean {
  
  	private GeneratingTradeItemReader reader;
  
  	public ExitStatus afterStep(StepExecution stepExecution) {
  		this.reader.resetCounter();
  		return null;
  	}
  
  	public void setReader(GeneratingTradeItemReader reader) {
  		this.reader = reader;
  	}
  
  	public void afterPropertiesSet() throws Exception {
  		Assert.notNull(this.reader, "The 'reader' must be set.");
  	}
  }