spring-batch ItemWriter 源码
spring-batch ItemWriter 代码
文件路径：/spring-batch-infrastructure/src/main/java/org/springframework/batch/item/ItemWriter.java
/*
* Copyright 2006-2022 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;
import java.util.List;
/**
* <p>
* Basic interface for generic output operations. Class implementing this interface will
* be responsible for serializing objects as necessary. Generally, it is responsibility of
* implementing class to decide which technology to use for mapping and how it should be
* configured.
* </p>
*
* <p>
* The write method is responsible for making sure that any internal buffers are flushed.
* If a transaction is active it will also usually be necessary to discard the output on a
* subsequent rollback. The resource to which the writer is sending data should normally
* be able to handle this itself.
* </p>
*
* @author Dave Syer
* @author Lucas Ward
* @author Taeik Lim
*/
@FunctionalInterface
public interface ItemWriter<T> {
/**
* Process the supplied data element. Will not be called with any null items in normal
* operation.
* @param items items to be written
* @throws Exception if there are errors. The framework will catch the exception and
* convert or rethrow it as appropriate.
*/
void write(List<? extends T> items) throws Exception;
}
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