spring-batch ProcessIndicatorItemWrapper 源码
spring-batch ProcessIndicatorItemWrapper 代码
文件路径：/spring-batch-samples/src/main/java/org/springframework/batch/sample/common/ProcessIndicatorItemWrapper.java
/*
* Copyright 2009 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
*
* https://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.common;
/**
* Item wrapper useful in "process indicator" usecase, where input is marked as processed
* by the processor/writer. This requires passing a technical identifier of the input data
* so that it can be modified in later stages.
*
* @param <T> item type
* @see StagingItemReader
* @see StagingItemProcessor
* @author Robert Kasanicky
*/
public class ProcessIndicatorItemWrapper<T> {
private long id;
private T item;
public ProcessIndicatorItemWrapper(long id, T item) {
this.id = id;
this.item = item;
}
/**
* @return id identifying the input data (typically row in database)
*/
public long getId() {
return id;
}
/**
* @return item (domain object for business processing)
*/
public T getItem() {
return item;
}
}
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