spring-batch FlatFileHeaderCallback 源码
spring-batch FlatFileHeaderCallback 代码
文件路径：/spring-batch-infrastructure/src/main/java/org/springframework/batch/item/file/FlatFileHeaderCallback.java
/*
* Copyright 2006-2018 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.file;
import java.io.Writer;
import java.io.IOException;
/**
* Callback interface for writing a header to a file.
*
* @author Robert Kasanicky
* @author Mahmoud Ben Hassine
*/
public interface FlatFileHeaderCallback {
/**
* Write contents to a file using the supplied {@link Writer}. It is not required to
* flush the writer inside this method.
* @param writer the {@link Writer} to be used to write the header.
* @throws IOException if error occurs during writing.
*/
void writeHeader(Writer writer) throws IOException;
}
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