spring-batch StepBuilderFactory 源码
spring-batch StepBuilderFactory 代码
文件路径：/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/annotation/StepBuilderFactory.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.annotation;
import org.springframework.batch.core.repository.JobRepository;
import org.springframework.batch.core.step.builder.StepBuilder;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.util.Assert;
/**
* Convenient factory for a {@link StepBuilder} which sets the {@link JobRepository} and
* {@link PlatformTransactionManager} automatically.
*
* @author Dave Syer
* @author Mahmoud Ben Hassine
*
*/
public class StepBuilderFactory {
private JobRepository jobRepository;
private PlatformTransactionManager transactionManager;
/**
* Constructor for the {@link StepBuilderFactory}.
* @param jobRepository The {@link JobRepository} to be used by the builder factory.
* Must not be {@code null}.
* @param transactionManager The {@link PlatformTransactionManager} to be used by the
* builder factory. Must not be {@code null}.
*/
public StepBuilderFactory(JobRepository jobRepository, PlatformTransactionManager transactionManager) {
Assert.notNull(jobRepository, "JobRepository must not be null");
Assert.notNull(transactionManager, "transactionManager must not be null");
this.jobRepository = jobRepository;
this.transactionManager = transactionManager;
}
/**
* Creates a step builder and initializes its job repository and transaction manager.
* Note that, if the builder is used to create a @Bean definition, the name of the
* step and the bean name might be different.
* @param name the name of the step
* @return a step builder
*/
public StepBuilder get(String name) {
return new StepBuilder(name).repository(this.jobRepository).transactionManager(this.transactionManager);
}
}
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