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ASF GitHub Bot commented on FLINK-8560: --------------------------------------- Github user pnowojski commented on a diff in the pull request: https://github.com/apache/flink/pull/5481#discussion_r169571398 --- Diff: flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/KeyedStream.scala --- @@ -79,7 +78,34 @@ class KeyedStream[T, K](javaStream: KeyedJavaStream[T, K]) extends DataStream[T] asScalaStream(javaStream.process(processFunction, implicitly[TypeInformation[R]])) } - + + /** + * Applies the given [[KeyedProcessFunction]] on the input stream, thereby --- End diff -- ditto > add KeyedProcessFunction to expose the key in onTimer() and other methods > ------------------------------------------------------------------------- > > Key: FLINK-8560 > URL: https://issues.apache.org/jira/browse/FLINK-8560 > Project: Flink > Issue Type: Improvement > Components: DataStream API > Affects Versions: 1.4.0 > Reporter: Jürgen Thomann > Assignee: Bowen Li > Priority: Major > Fix For: 1.5.0 > > > Currently it is required to store the key of a keyBy() in the processElement > method to have access to it in the OnTimerContext. > This is not so good as you have to check in the processElement method for > every element if the key is already stored and set it if it's not already set. > A possible solution would adding OnTimerContext#getCurrentKey() or a similar > method. Maybe having it in the open() method could maybe work as well. > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Getting-Key-from-keyBy-in-ProcessFunction-tt18126.html -- This message was sent by Atlassian JIRA (v7.6.3#76005)