There is no difference; FlatMapElements is implemented in terms of a
DoFn that invokes context.output multiple times. And, yes, Dataflow
will fuse consecutive operations automatically. So if you have
something like
... -> DoFnA -> DoFnB -> GBK -> DoFnC -> ...
Dataflow will fuse DoFnA and DoFnB
Hello
I have a question. If I have a transform for each input it will emit 1 or
many output (same collection)
I can do it with ParDo + DoFun while in processElement method for each
input, call context.output multiply times vs doing it with FlatMapElements,
is there any difference? Does the
