spring-batch PassThroughItemProcessor 源码
spring-batch PassThroughItemProcessor 代码
文件路径：/spring-batch-infrastructure/src/main/java/org/springframework/batch/item/support/PassThroughItemProcessor.java
/*
* Copyright 2006-2019 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.item.support;
import org.springframework.batch.item.ItemProcessor;
import org.springframework.lang.Nullable;
/**
* Simple {@link ItemProcessor} that does nothing - simply passes its argument through to
* the caller. Useful as a default when the reader and writer in a business process deal
* with items of the same type, and no transformations are required.
*
* @author Dave Syer
*
*/
public class PassThroughItemProcessor<T> implements ItemProcessor<T, T> {
/**
* Just returns the item back to the caller.
* @return the item
* @see ItemProcessor#process(Object)
*/
@Nullable
@Override
public T process(T item) throws Exception {
return item;
}
}
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