| Interface | Description | 
|---|---|
| SchedulerService | 
 Defines methods required to schedule a task. 
 | 
| Task | 
| Class | Description | 
|---|---|
| Schedule | 
 Describes when to start a task and how often it should be executed. 
 | 
| SchedulerConstants | |
| SchedulerUtil | |
| StatefulTask | 
 Stateful task 
 | 
| TaskDefinition | 
 Represents the metadata for a task that can be scheduled. 
 | 
| TaskFactory | 
| Exception | Description | 
|---|---|
| SchedulerException | 
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