If processing based on event time, returns the window end time based on watermark otherwise returns the window end time based on processing time. @re

Scans the event queue and returns number of events having timestamp less than or equal to the reference time. @param referenceTime the reference time

Returns an {@code EvictionPolicy} instance for this strategy with the given configuration.

Fetches the executor-level data for the given name. This data is shared across tasks and corresponding task hook managed by the given executor. @para

Get exit code. @return exit code of the process if process is terminated, -1 if process is not started or terminated.