Transaction management with Spring Batch

Question

I am discovering actually Spring and I am able to setup some jobs. Now, I would like to save my imported datas in a database using Hibernate/JPA and I keep getting this erro

Answer 1

The problem is that you are creating a second transaction manager (transactionManager2), but Spring Batch is using another transaction manager for starting transactions. If you use @EnableBatchProcessing, Spring Batch automatically registers a transaction manager to use for its transactions, and your JpaTransactionManager never gets used. If you want to change the transaction manager that Spring Batch uses for transactions, you have to implement the interface BatchConfigurer. Take a look at this example: https://github.com/codecentric/spring-batch-javaconfig/blob/master/src/main/java/de/codecentric/batch/configuration/WebsphereInfrastructureConfiguration.java. Here I am switching the transaction manager to a WebspherUowTransactionManager, and in the same way you can switch the transaction manager to some other transaction manager. Here's the link to the blog post explaining it: http://blog.codecentric.de/en/2013/06/spring-batch-2-2-javaconfig-part-3-profiles-and-environments/

Answer 2

You need to explicitly reference your Transaction Manager in your step definition:

<job id="sampleJob" job-repository="jobRepository">
    <step id="step1">
        <tasklet transaction-manager="transactionManager">
            <chunk reader="itemReader" writer="itemWriter" commit-interval="10"/>
        </tasklet>
    </step>
</job>

See: 5.1.1. Configuring a Step

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Ah, seeing that you use JavaConfig, you need to assign the transaction manager to the TaskletStepBuilder using builder.transactionManager(transactionManager) (inherited from StepBuilderHelper)