- collect
Emits one element from the source, without attaching a timestamp. In most cases,
this is the default
- getCheckpointLock
Returns the checkpoint lock. Please refer to the class-level comment in
SourceFunction for details a
- emitWatermark
Emits the given Watermark. A Watermark of value t declares that no elements with
a timestamp t' late
- collectWithTimestamp
Emits one element from the source, and attaches the given timestamp. This method
is relevant for pro
- close
This method is called by the system to shut down the context.