def get_impl(timestamp_combiner, window_fn):
if timestamp_combiner == TimestampCombiner.OUTPUT_AT_EOW:
return timeutil.OutputAtEndOfWindowImpl()
elif timestamp_combiner == TimestampCombiner.OUTPUT_AT_EARLIEST:
return timeutil.OutputAtEarliestInputTimestampImpl()
elif timestamp_combiner == TimestampCombiner.OUTPUT_AT_LATEST:
return timeutil.OutputAtLatestInputTimestampImpl()
elif timestamp_combiner == TimestampCombiner.OUTPUT_AT_EARLIEST_TRANSFORMED:
return timeutil.OutputAtEarliestTransformedInputTimestampImpl(window_fn)
else:
raise ValueError('Invalid TimestampCombiner: %s.' % timestamp_combiner)
def get_impl(output_time_fn, window_fn):
if output_time_fn == OutputTimeFn.OUTPUT_AT_EOW:
return timeutil.OutputAtEndOfWindowImpl()
elif output_time_fn == OutputTimeFn.OUTPUT_AT_EARLIEST:
return timeutil.OutputAtEarliestInputTimestampImpl()
elif output_time_fn == OutputTimeFn.OUTPUT_AT_LATEST:
return timeutil.OutputAtLatestInputTimestampImpl()
elif output_time_fn == OutputTimeFn.OUTPUT_AT_EARLIEST_TRANSFORMED:
return timeutil.OutputAtEarliestTransformedInputTimestampImpl(window_fn)
else:
raise ValueError('Invalid OutputTimeFn: %s.' % output_time_fn)
