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https://issues.apache.org/jira/browse/SPARK-6838?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shivaram Venkataraman updated SPARK-6838:
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    Target Version/s: 1.5.0  (was: 1.4.0)

> Explore using Reference Classes instead of S4 objects
> -----------------------------------------------------
>
>                 Key: SPARK-6838
>                 URL: https://issues.apache.org/jira/browse/SPARK-6838
>             Project: Spark
>          Issue Type: Improvement
>          Components: SparkR
>            Reporter: Shivaram Venkataraman
>            Priority: Minor
>
> The current RDD and PipelinedRDD are represented in S4 objects. R has a new 
> OO system: Reference Class (RC or R5). It seems to be a more message-passing 
> OO and instances are mutable objects. It is not an important issue, but it 
> should also require trivial work. It could also remove the kind-of awkward 
> "@" operator in S4.
> R6 is also worth checking out. Feels closer to your ordinary object oriented 
> language. https://github.com/wch/R6



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