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Posted to issues@flink.apache.org by "Timo Walther (JIRA)" <ji...@apache.org> on 2018/07/31 08:26:00 UTC
[jira] [Commented] (FLINK-10000) There's a mistake in the comments
of CoGroupedStreams.java
[ https://issues.apache.org/jira/browse/FLINK-10000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16563294#comment-16563294 ]
Timo Walther commented on FLINK-10000:
--------------------------------------
Thanks [~dangdangdang] for opening issue FLINK-10000 ;-)
> There's a mistake in the comments of CoGroupedStreams.java
> ----------------------------------------------------------
>
> Key: FLINK-10000
> URL: https://issues.apache.org/jira/browse/FLINK-10000
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Reporter: Shimin Yang
> Assignee: Shimin Yang
> Priority: Minor
>
> The example of CoGroupedStream
> * DataStream<T> result = one.coGroup(two)
> * .where(new MyFirstKeySelector())
> * .equalTo(new MyFirstKeySelector())
> * .window(TumblingEventTimeWindows.of(Time.of(5, TimeUnit.SECONDS)))
> * .apply(new MyCoGroupFunction());
> * } </pre>
> the params of method equalTo should be MySecondKeySelector instead of MyFirstKeySelector.
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