spring-batch StepHandler 源码
spring-batch StepHandler 代码
文件路径：/spring-batch-core/src/main/java/org/springframework/batch/core/job/StepHandler.java
/*
* Copyright 2006-2009 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.core.job;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobInterruptedException;
import org.springframework.batch.core.StartLimitExceededException;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.StepExecution;
import org.springframework.batch.core.repository.JobRestartException;
/**
* Strategy interface for handling a {@link Step} on behalf of a {@link Job}.
*
* @author Dave Syer
*
*/
public interface StepHandler {
/**
* Handle a step and return the execution for it. Does not save the
* {@link JobExecution}, but should manage the persistence of the
* {@link StepExecution} if required (e.g. at least it needs to be added to a
* repository before the step can be executed).
* @param step a {@link Step}
* @param jobExecution a {@link JobExecution}
* @return an execution of the step
* @throws JobInterruptedException if there is an interruption
* @throws JobRestartException if there is a problem restarting a failed step
* @throws StartLimitExceededException if the step exceeds its start limit
*
* @see Job#execute(JobExecution)
* @see Step#execute(StepExecution)
*/
StepExecution handleStep(Step step, JobExecution jobExecution)
throws JobInterruptedException, JobRestartException, StartLimitExceededException;
}
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