Java – spring batch: different job initiators for different jobs

I have two different jobs (actually more, but assume 2 for simplicity) Each job can run in parallel with another job, but each instance of the same job should run in order (otherwise the instances will eat into each other's resources)

Basically, I want each of these jobs to have its own job instance queue I think I can use two different thread pool job initiators (each with 1 thread) and associate the job initiator with each job

Is there a way to do this and be respected when starting a job from the spring batch admin Web UI?

Solution

There is a way to specify a specific job launcher for a specific job, but I found that the only way to do this is to use jobstep

If you have a job named "specificjob", this will create another job "queuespecificjob", so when you start it through quartz or spring batch web administrator, it will queue "specificjob" for execution

<bean id="specificJobLauncher" class="org.springframework.batch.core.launch.support.SimpleJobLauncher">
    <property name="jobRepository" ref="jobRepository"/>
    <property name="taskExecutor">
        <task:executor id="singleThreadPoolExecutor" pool-size="1"/>
    </property>
</bean>

<job id="queueSpecificJob">
    <step id="specificJobStep">
        <job ref="specificJob" job-launcher="specificJobLauncher" job-parameters-extractor="parametersExtractor" />
    </step>
</job>