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Posted to commits@beam.apache.org by "Luke Cwik (JIRA)" <ji...@apache.org> on 2016/08/31 21:14:20 UTC

[jira] [Created] (BEAM-611) Add support for MapValues

Luke Cwik created BEAM-611:
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             Summary: Add support for MapValues
                 Key: BEAM-611
                 URL: https://issues.apache.org/jira/browse/BEAM-611
             Project: Beam
          Issue Type: Improvement
          Components: sdk-ideas
            Reporter: Luke Cwik
            Priority: Minor


Filed from: https://github.com/GoogleCloudPlatform/DataflowJavaSDK/issues/412

Often I find myself needing to simply map a function over just the values of a key-valued PCollection. MapElements works for this, but suffers a small hit in readability (imho) and introduces some possibility for error.

I wanted to see if there is any bandwidth / interest in adding this as a standard transform to the SDK. If so, I have attached a gist with a basic spike I have been using in my flows:

https://gist.github.com/trentonstrong/8b60933dca545eb2138b72899195019e



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