@InterfaceAudience.Private @InterfaceStability.Unstable
See: Description
| Interface | Description | 
|---|---|
| NodeCandidateSelector | A read only implementation of the ClusterNodeTracker which exposes a method
 to simply return a filtered list of nodes. | 
| Class | Description | 
|---|---|
| AbstractPlacementProcessor | Base class for all PlacementProcessors. | 
| BatchedRequests | A grouping of Scheduling Requests which are sent to the PlacementAlgorithm
 to place as a batch. | 
| DisabledPlacementProcessor | Processor that reject all SchedulingRequests. | 
| PlacementConstraintProcessor | An ApplicationMasterServiceProcessor that performs Constrained placement of
 Scheduling Requests. | 
| SchedulerPlacementProcessor | Forwarding SchedulingRequests to be handled by the scheduler, as long as the
 scheduler supports SchedulingRequests. | 
| Enum | Description | 
|---|---|
| BatchedRequests.IteratorType | Iterator Type. | 
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