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From "Davor Bonaci (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (BEAM-249) Combine.GroupedValues re-wraps combineFn from Combine.PerKey and loses identity for DisplayData
Date Mon, 02 May 2016 23:47:12 GMT

     [ https://issues.apache.org/jira/browse/BEAM-249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Davor Bonaci updated BEAM-249:
------------------------------
    Assignee: Scott Wegner  (was: Davor Bonaci)

> Combine.GroupedValues re-wraps combineFn from Combine.PerKey and loses identity for DisplayData
> -----------------------------------------------------------------------------------------------
>
>                 Key: BEAM-249
>                 URL: https://issues.apache.org/jira/browse/BEAM-249
>             Project: Beam
>          Issue Type: Sub-task
>          Components: sdk-java-core
>            Reporter: Scott Wegner
>            Assignee: Scott Wegner
>            Priority: Minor
>
> Combine.PerKey is implemented in terms of Combine.GroupedValues, but it passed as wrapped
combineFn which gets re-wrapped in Combine.GroupedValues. As a result, we lose the identity
of the original combineFn for display data.
> We should update the API to also pass the original identity downstream.



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