无法在Quartz Scheduler中获取作业列表

Question

I am trying to fetch all jobs registered with the Quartz scheduler for a particular group. here is my piece of code

CustomSchdularFactory.getSchedulerInstance().getJobKeys(groupEquals(group));

here group is a String variable holding the name of group whose associated jobs i want to fetch. while using the above code i am getting following error

The method getJobKeys(GroupMatcher<JobKey>) in the type Scheduler is not applicable for the arguments (GroupMatcher<Key<Key<T>>>)

i am not sure why this error is occurring as i took the reference from Quartz official documents

ListJobs

Answer 1

Use jobGroupEquals instead of groupEquals

CustomSchdularFactory.getSchedulerInstance().getJobKeys(jobGroupEquals(group));

and it will work for you.

Answer 2

Use it

Scheduler sched = new StdSchedulerFactory().getScheduler();

for(String group: sched.getJobGroupNames()) {
   for(JobKey jobKey : sched.getJobKeys(GroupMatcher.jobGroupEquals(group))) {
      ...
   }
}

Answer 3

On Quartz.NET 3.0, I was able to get this working in asynchronous mode:

public static async Task RunTask() {
    StdSchedulerFactory factory = new StdSchedulerFactory(System.Configuration.ConfigurationManager.AppSettings);
    IScheduler scheduler = await factory.GetScheduler();
    await scheduler.Start();

    IReadOnlyCollection<string> jgn = await sch.GetJobGroupNames(new System.Threading.CancellationToken());
    foreach (string jno in jgn)
    {
        IReadOnlyCollection <JobKey> jk = await sch.GetJobKeys(jobGroupEquals(jno));
        foreach (JobKey j in jk)
        {
            var currentJob = await sch.GetJobDetail(j);

            //print the properties of the current job
            Console.WriteLine(currentJob.Key.Name);
            Console.WriteLine(currentJob.Description);
        }                   
    }
}   

private static GroupMatcher<JobKey> jobGroupEquals(string jno)
{
    return GroupMatcher<JobKey>.GroupEquals(jno);
}