CODEWITHSUNDEEP
quartz.net
Matte
Matte

Reputation: 315

Quartz .net: with a JobListener, Jobs are not triggered

I have properly created and scheduled a Job (I don't write the Job and Trigger creation here, just to be brief). Scheduler is created and started as follows:

_scheduler = New StdSchedulerFactory().GetScheduler
_scheduler.Start()

Jobs are executed at the scheduled time.

Then I created a very simple (and empty, at the moment) a JobListener:

Imports Quartz

Public Class JobListener
    Implements IJobListener

#Region "Public properties"

    Public ReadOnly Property Name As String Implements Quartz.IJobListener.Name
        Get
            Return "JOB_LISTENER"
        End Get
    End Property

#End Region

#Region "Methods"

    Public Sub JobExecutionVetoed(context As Quartz.IJobExecutionContext) Implements Quartz.IJobListener.JobExecutionVetoed
        Throw New NotImplementedException
    End Sub

    Public Sub JobToBeExecuted(context As Quartz.IJobExecutionContext) Implements Quartz.IJobListener.JobToBeExecuted
        Throw New NotImplementedException
    End Sub

    Public Sub JobWasExecuted(context As Quartz.IJobExecutionContext, jobException As Quartz.JobExecutionException) Implements Quartz.IJobListener.JobWasExecuted

    End Sub

#End Region

End Class

and add it to the scheduler:

_scheduler = New StdSchedulerFactory().GetScheduler
_scheduler.Start()
_jobListener = New JobListener()
_scheduler.ListenerManager.AddJobListener(_jobListener, GroupMatcher(Of JobKey).AnyGroup())

and now the Jobs are not executed anymore. Any hint why it happens?

Same result if I add the JobListener before starting the Scheduler:

_jobListener = New JobListener()
_scheduler = New StdSchedulerFactory().GetScheduler
_scheduler.ListenerManager.AddJobListener(_jobListener,  GroupMatcher(Of JobKey).AnyGroup())
_scheduler.Start()

Upvotes: 2

Views: 1286

Answers (1)

Matte
Matte

Reputation: 315

I figured out which was the problem.

First of all, an advice: always configure a log before starting to debug with Quartz .net.

When the Job is ready to be executed, the JobListener is notified and then the method JobToBeExecuted is called. As you can see in my JobListener's implementation I throw an exception in the method JobToBeExecuted and that exception prevents the Job to be executed.

I didn't investigate why an error in the JobListener should prevent the Job to be executed. I guess there's a chain of calls broken by the exception. Anyway, this is the answer to my question.

Upvotes: 3

Related Questions