Thanks for opening this. I see the need for having an extensible context object for window function invocations, but i think hiding every parameter in the context is a bit unnatural.
How about having a function "apply(Key, Values, WindowContext, Collector)" ? It should be possible to write the straightforward use cases without accessing the context object. On Wed, Jul 13, 2016 at 1:56 PM, Aljoscha Krettek <aljos...@apache.org> wrote: > Hi, > this is a proposal to introduce a new interface for the window function to > make it more extensible for the future where we might want to provide > additional information about why a window fired to the user function: > > > https://cwiki.apache.org/confluence/display/FLINK/FLIP-2+Extending+Window+Function+Metadata > > I'd appreciate your thoughts! > > Cheers, > Aljoscha >
