[
https://issues.apache.org/jira/browse/FLINK-3521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15169691#comment-15169691
]
ASF GitHub Bot commented on FLINK-3521:
---------------------------------------
Github user aljoscha commented on the pull request:
https://github.com/apache/flink/pull/1723#issuecomment-189458811
Yes, this is correct. (about the fold() on non-keyed windows)
> Make Iterable part of method signature for WindowFunction
> ---------------------------------------------------------
>
> Key: FLINK-3521
> URL: https://issues.apache.org/jira/browse/FLINK-3521
> Project: Flink
> Issue Type: Improvement
> Components: Streaming
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
> Priority: Blocker
>
> After discussion with [~StephanEwen],[~rmetzger], [~fhueske] it was decided
> that the signature of WindowFunction should be changed.
> Right now, the signature is {{WindowFunction<IN, OUT, KEY, WINDOW>}}. With
> the decision of whether the input is an {{Iterable}} nor not residing in the
> signature of the method on {{WindowedStream}}, for example:
> - {{WindowedStream.apply(WindowFunction<Iterable<IN>>, OUT, KEY, WINDOW>}}
> - {{WindowedStream.apply(ReduceFunction, WindowFunction<IN, OUT, KEY,
> WINDOW>}}
> The {{Iterable<>}} should be moved into the signature of the {{apply}}
> method, so that it is:
> {{void apply(KEY key, W window, Iterable<IN> input, Collector<OUT> out)}}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
