001/*
002 * Copyright 2006-2007 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.springframework.batch.sample.loop;
017
018import org.springframework.batch.core.ExitStatus;
019import org.springframework.batch.core.StepExecution;
020import org.springframework.batch.core.listener.StepExecutionListenerSupport;
021import org.springframework.batch.sample.domain.trade.internal.GeneratingTradeItemReader;
022import org.springframework.beans.factory.InitializingBean;
023import org.springframework.util.Assert;
024
025/**
026 * This listener resets the count of its GeneratingTradeItemReader after the
027 * step.
028 * 
029 * @author Dan Garrette
030 * @since 2.0
031 */
032public class GeneratingTradeResettingListener extends StepExecutionListenerSupport implements InitializingBean {
033
034        private GeneratingTradeItemReader reader;
035
036        @Override
037        public ExitStatus afterStep(StepExecution stepExecution) {
038                this.reader.resetCounter();
039                return null;
040        }
041
042        public void setReader(GeneratingTradeItemReader reader) {
043                this.reader = reader;
044        }
045
046        @Override
047        public void afterPropertiesSet() throws Exception {
048                Assert.notNull(this.reader, "The 'reader' must be set.");
049        }
050}