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https://issues.apache.org/jira/browse/FLINK-8560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16371133#comment-16371133
]
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_r169571208
--- Diff:
flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/DataStream.scala
---
@@ -666,18 +666,18 @@ class DataStream[T](stream: JavaStream[T]) {
}
/**
- * Applies the given [[ProcessFunction]] on the input stream, thereby
- * creating a transformed output stream.
- *
- * The function will be called for every element in the stream and can
produce
- * zero or more output.
- *
- * @param processFunction The [[ProcessFunction]] that is called for
each element
- * in the stream.
- */
+ * Applies the given [[ProcessFunction]] on the input stream, thereby
--- End diff --
Can you revert this formatting? I think proper java docs should be as this
was before:
```
/**
*
*/
```
instead of:
```
/**
*
*/
```
> 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
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