@DefaultAnnotation(value=org.checkerframework.checker.nullness.qual.NonNull.class)
DoFn.See: Description
| Interface | Description | 
|---|---|
| RestrictionTrackers.ClaimObserver<PositionT> | Interface allowing a runner to observe the calls to  RestrictionTracker.tryClaim(PositionT). | 
| WatermarkEstimators.WatermarkAndStateObserver<WatermarkEstimatorStateT> | Interface which allows for accessing the current watermark and watermark estimator state. | 
| Class | Description | 
|---|---|
| RestrictionTrackers | Support utilities for interacting with  RestrictionTrackers. | 
| WatermarkEstimators | Support utilties for interacting with  WatermarkEstimators. | 
DoFn.