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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-5315) reduceByWindow returns Scala DStream not JavaDStream
Date Mon, 19 Jan 2015 09:16:34 GMT

    [ https://issues.apache.org/jira/browse/SPARK-5315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14282287#comment-14282287
] 

Sean Owen commented on SPARK-5315:
----------------------------------

Ah, yeah that looks like a typo for sure. The other overload of this method in {{JavaDStreamLike}}
returns {{JavaDStream}}. Hm, that would change the API unfortunately, but I wonder if anyone
is relying on it? Of course, callers can just wrap it in {{JavaDStream}} as an easy 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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