Restart of a step

[qwerts]

Hi

the following is my job configuration:

	<bean id="demoJob" class="...SimpleJob">
		<property name="name" value="demoJob" />
		<property name="steps">
			<list>
				<ref bean="taskletDemoStep" />
			</list>
		</property>
	</bean>

	<bean id="taskletDemoStep" parent="taskletStep">
		<property name="startLimit" value="2" />
		<property name="tasklet" ref="tasklet" />
		<property name="jobRepository" ref="jobRepository" />
		<property name="transactionManager" ref="batchExecTransactionManager"></property>
	</bean>

	<bean id="tasklet" class="batch.demo.MyTasklet" />

The tasklet always throws an Exception.

I am using quartz to trigger this job once. Once triggered, I am expecting this job to run 2/3 times and fail with StartLimitExceededException. However, it does not restart on itself.

Any wrong with the above configuration?

Thanks for your help.

[DHGarrette]

Spring Batch doesn't trigger jobs to restart automatically. You need to configure Quartz to relaunch it. (Or, you could write a custom JobLauncher that does it if you want).

[qwerts]

Ok. If we were to relaunch a job, what class should the joblauncher really use?

I thought of using JobOperator, but that would mean cyclic dependencies, as JobOperator already holds a reference to JobLauncher. To me, cyclic dependencies dont look good.

What are your suggestions?

[DHGarrette]

I'm confused by your question. I was just thinking you could create something like this and use it as your JobLauncher instead of using the SimpleJobLauncher directly:

public class RelaunchingJobLauncher implements JobLauncher {
    private JobLauncher simpleJobLauncher;

    public JobExecution run(Job job, JobParameters jobParameters) {
        JobExecution jobExecution;
        do {
            jobExecution = simpleJobLauncher.run(job, jobParameters);
        } while(jobExecution.getStatus() == BatchStatus.FAILED)

        return jobExecution;
    }
}