spring-batch NoWorkFoundStepExecutionListener 源码
spring-batch NoWorkFoundStepExecutionListener 代码
文件路径：/spring-batch-core/src/main/java/org/springframework/batch/core/step/NoWorkFoundStepExecutionListener.java
/*
* Copyright 2002-2021 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.step;
import org.springframework.batch.core.ExitStatus;
import org.springframework.batch.core.StepExecution;
import org.springframework.batch.core.StepExecutionListener;
import org.springframework.lang.Nullable;
/**
* Fails the step if no items have been processed ( item count is 0).
*
* @author Robert Kasanicky
* @author Mahmoud Ben Hassine
*/
public class NoWorkFoundStepExecutionListener implements StepExecutionListener {
@Nullable
@Override
public ExitStatus afterStep(StepExecution stepExecution) {
if (stepExecution.getReadCount() == 0) {
return ExitStatus.FAILED;
}
return null;
}
}
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