spring-batch StepRegistry 源码
spring-batch StepRegistry 代码
文件路径：/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/StepRegistry.java
/*
* Copyright 2012-2022 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.core.configuration;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.launch.NoSuchJobException;
import org.springframework.batch.core.step.NoSuchStepException;
import java.util.Collection;
/**
* Registry keeping track of all the {@link Step} instances defined in a
* {@link org.springframework.batch.core.Job}.
*
* @author Sebastien Gerard
* @author Stephane Nicoll
*/
public interface StepRegistry {
/**
* Registers all the step instances of the given job. If the job is already
* registered, the method {@link #unregisterStepsFromJob(String)} is called before
* registering the given steps.
* @param jobName the give job name
* @param steps the job steps
* @throws DuplicateJobException if a job with the same job name has already been
* registered.
*/
void register(String jobName, Collection<Step> steps) throws DuplicateJobException;
/**
* Unregisters all the steps instances of the given job. If the job is not registered,
* nothing happens.
* @param jobName the given job name
*/
void unregisterStepsFromJob(String jobName);
/**
* Returns the {@link Step} of the specified job based on its name.
* @param jobName the name of the job
* @param stepName the name of the step to retrieve
* @return the step with the given name belonging to the mentioned job
* @throws NoSuchJobException no such job with that name exists
* @throws NoSuchStepException no such step with that name for that job exists
*/
Step getStep(String jobName, String stepName) throws NoSuchJobException, NoSuchStepException;
}
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