With the help of the Scheduler Quartz Component generic Blueriq jobs can be scheduled, unscheduled or rescheduled. Generic jobs do not need to have knowledge about the specific scheduler used (in our case, about Quartz), they only need to implement the scheduling interfaces defined in Blueriq.
Details about the needed interfaces and how to implement and schedule a custom job are detailed in this article.
Implementing custom jobs
A custom jobs should implement both in Java and .Net the IJob Blueriq interface. The execute(IExecutionContext context) method defined in the IJob interface is going to be executed when the job is executed. The job's scheduler and the job's parameters can be accessed from the execution context: context.getParameters() andcontext.getScheduler().
Example
The Blueriq scheduler when executes the job looks for an object with the scheduled job's type in the application context. As a consequence at execution a bean of the scheduled job type should be available in the application context.
@Component
public class MyJob implements IJob {
@Override
public void execute(IExecutionContext context) {
IJobParamters paramters = context.getParameters();
IScheduler scheduler = context.getScheduler();
}
}
public class TestJob : BQ.IJob
{
public void execute(BQ.IExecutionContext context)
{
BQ.IJobParamters parameters = context.getParameters();
BQ.IScheduler scheduler = context.getScheduler();
}
}
Scheduling, unscheduling and rescheduling custom jobs
Scheduling custom jobs
For scheduling custom jobs the IScheduler.schedule method can be used. It has the following four parameters:
the class of the job
the paramteres of the job
can be created by calling the IScheduler.createJobParameters().
the schedule of the job
can be created by callingIScheduler.getScheduleBuilder().onDate(Date date) or IScheduler.getScheduleBuilder().now() methods
the ID of the job
can be created by calling the IScheduler.createJobId(String jobId)
Custom jobs can be scheduled using the SpringQuartzScheduler class in the Quartz Scheduler Component.