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Posted to issues@spark.apache.org by "Hans Uhlig (JIRA)" <ji...@apache.org> on 2014/06/25 18:38:24 UTC

[jira] [Created] (SPARK-2280) Java & Scala reference docs should describe function reference behavior.

Hans Uhlig created SPARK-2280:
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             Summary: Java & Scala reference docs should describe function reference behavior.
                 Key: SPARK-2280
                 URL: https://issues.apache.org/jira/browse/SPARK-2280
             Project: Spark
          Issue Type: Improvement
          Components: Documentation
    Affects Versions: 1.0.0
            Reporter: Hans Uhlig


Example

<K> JavaPairRDD<K,Iterable<T>> groupBy(Function<T,K> f)
Return an RDD of grouped elements. Each group consists of a key and a sequence of elements mapping to that key. 

T and K are not described and there is no explanation of what the function's inputs and outputs should be and how GroupBy uses this information.



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