# Package org.jbpm.process.core.timer.impl

- Class Summary
  Class | Description
  --- | ---
  DelegateSchedulerServiceInterceptor | Simple delegate that is default implementation used if none other has been given.
  GlobalTimerService |
  GlobalTimerService.DisposableCommandService |
  GlobalTimerService.GlobalJobHandle |
  QuartzSchedulerService | Quartz based `GlobalSchedulerService` that is configured according to Quartz rules and allows to store jobs in data base.
  QuartzSchedulerService.GlobalQuartzJobHandle |
  QuartzSchedulerService.InmemoryTimerJobInstanceDelegate |
  QuartzSchedulerService.QuartzJob |
  RegisteredTimerServiceDelegate | Simple delegate for timer service that fetches the real instance of timer service from TimerServiceRegistry under "default" key.
  ThreadPoolSchedulerService | ThreadPool based scheduler service backed by `ThreadPoolSchedulerService`
  ThreadPoolSchedulerService.GlobalJDKJobHandle |

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