spring-batch ExceptionHandler 源码
spring-batch ExceptionHandler 代码
文件路径：/spring-batch-infrastructure/src/main/java/org/springframework/batch/repeat/exception/ExceptionHandler.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.repeat.exception;
import org.springframework.batch.repeat.CompletionPolicy;
import org.springframework.batch.repeat.RepeatContext;
/**
* Handler to allow strategies for re-throwing exceptions. Normally a
* {@link CompletionPolicy} will be used to decide whether to end a batch when there is no
* exception, and the {@link ExceptionHandler} is used to signal an abnormal ending - an
* abnormal ending would result in an {@link ExceptionHandler} throwing an exception. The
* caller will catch and re-throw it if necessary.
*
* @author Dave Syer
* @author Robert Kasanicky
* @author Taeik Lim
*
*/
@FunctionalInterface
public interface ExceptionHandler {
/**
* Deal with a Throwable during a batch - decide whether it should be re-thrown in the
* first place.
* @param context the current {@link RepeatContext}. Can be used to store state (via
* attributes), for example to count the number of occurrences of a particular
* exception type and implement a threshold policy.
* @param throwable an exception.
* @throws Throwable implementations are free to re-throw the exception
*/
void handleException(RepeatContext context, Throwable throwable) throws Throwable;
}
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