Swastik Swastik - 21 days ago 5
C# Question

Schedule multiple jobs in Quartz.Net

I am a beginner in Quartz.Net.
How can I add multiple jobs in a scheduler?

For the sake of learning I am using Console Application.

Answer

If you're new to Quartz.Net I would suggest you to start with Jay Vilalta's Blog and the old one where you can find loads of tutorials and useful infos about Quartz.Net.

If you want to schedule multiple jobs in your console application you can simply call Scheduler.ScheduleJob (IScheduler) passing the job and the trigger you've previously created:

IJobDetail firstJob = JobBuilder.Create<FirstJob>()
               .WithIdentity("firstJob")
               .Build();

ITrigger firstTrigger = TriggerBuilder.Create()
                 .WithIdentity("firstTrigger")
                 .StartNow()
                 .WithCronSchedule("0 * 8-22 * * ?")
                 .Build();


IJobDetail secondJob = JobBuilder.Create<SecondJob>()
               .WithIdentity("secondJob")
               .Build();

ITrigger secondTrigger = TriggerBuilder.Create()
                 .WithIdentity("secondTrigger")
                 .StartNow()
                 .WithCronSchedule("0 0/2 * 1/1 * ? *")
                 .Build();

Scheduler.ScheduleJob(firstJob, firstTrigger);
Scheduler.ScheduleJob(secondJob, secondTrigger);

You can download a working example here.

UPDATE:

If you want to pause and/or restart a job you can use PauseJob and ResumeJob (you can do the same for a trigger with PauseTrigger and ResumeTrigger).

This is a sample:

private static void Test001(IScheduler Scheduler)
{
    IJobDetail firstJob = JobBuilder.Create<FirstJob>()
                   .WithIdentity("firstJob")
                   .Build();

    ITrigger firstTrigger = TriggerBuilder.Create()
                     .WithIdentity("firstTrigger")
                     .StartNow()
                     .WithSimpleSchedule(x => x.WithIntervalInSeconds(1).RepeatForever())
                     .Build();


    IJobDetail secondJob = JobBuilder.Create<SecondJob>()
                   .WithIdentity("secondJob")
                   .Build();

    ITrigger secondTrigger = TriggerBuilder.Create()
                     .WithIdentity("secondTrigger")
                     .StartNow()
                     .WithSimpleSchedule(x=>x.WithIntervalInSeconds(1).RepeatForever())
                     .Build();


    Scheduler.ScheduleJob(firstJob, firstTrigger);
    Scheduler.ScheduleJob(secondJob, secondTrigger);

    for (int i = 0; i < 300; i++)
    {
    System.Threading.Thread.Sleep(100);
    if (i == 100)
    {
        Scheduler.PauseJob(new JobKey("firstJob"));
    }
    else if (i == 200)
    {
        Scheduler.ResumeJob(new JobKey("firstJob"));
    }
    }
}