org.quartz.spi

Interface JobFactory

All Known Implementing Classes:

PropertySettingJobFactory, SimpleJobFactory

public interface JobFactory

A JobFactory is responsible for producing instances of Job classes.

This interface may be of use to those wishing to have their application produce Job instances via some special mechanism, such as to give the opertunity for dependency injection.

Author:

James House

See Also:

Scheduler.setJobFactory(JobFactory), SimpleJobFactory, PropertySettingJobFactory

Method Summary

Methods

Modifier and Type	Method and Description
Job	newJob(TriggerFiredBundle bundle, Scheduler scheduler) Called by the scheduler at the time of the trigger firing, in order to produce a Job instance on which to call execute.

Method Detail

newJob

Job newJob(TriggerFiredBundle bundle,
         Scheduler scheduler)
           throws SchedulerException

Called by the scheduler at the time of the trigger firing, in order to produce a Job instance on which to call execute.

It should be extremely rare for this method to throw an exception - basically only the the case where there is no way at all to instantiate and prepare the Job for execution. When the exception is thrown, the Scheduler will move all triggers associated with the Job into the Trigger.STATE_ERROR state, which will require human intervention (e.g. an application restart after fixing whatever configuration problem led to the issue wih instantiating the Job.

Parameters:

bundle - The TriggerFiredBundle from which the JobDetail and other info relating to the trigger firing can be obtained.

scheduler - a handle to the scheduler that is about to execute the job.

Returns:

the newly instantiated Job

Throws:

SchedulerException - if there is a problem instantiating the Job.