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https://issues.apache.org/jira/browse/SPARK-5315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14282310#comment-14282310
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Sean Owen commented on SPARK-5315:
----------------------------------
Agree, but someone may be calling this method and wrapping the result. This
change breaks such a program. It may well be worth it but not obvious. There is
not a good answer. Could also just deprecate it to mark the problem and
workaround.
> reduceByWindow returns Scala DStream not JavaDStream
> ----------------------------------------------------
>
> Key: SPARK-5315
> URL: https://issues.apache.org/jira/browse/SPARK-5315
> Project: Spark
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 1.2.0
> Reporter: Saisai Shao
>
> {code}
> def reduceByWindow(
> reduceFunc: (T, T) => T,
> windowDuration: Duration,
> slideDuration: Duration
> ): DStream[T] = {
> dstream.reduceByWindow(reduceFunc, windowDuration, slideDuration)
> }
> {code}
> It should return JavaDStream not DStream for java code.
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