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https://issues.apache.org/jira/browse/BEAM-2166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15998980#comment-15998980
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ASF GitHub Bot commented on BEAM-2166:
--------------------------------------
Github user tgroh closed the pull request at:
https://github.com/apache/beam/pull/2921
> Remove Coder.Context from the public API
> ----------------------------------------
>
> Key: BEAM-2166
> URL: https://issues.apache.org/jira/browse/BEAM-2166
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core, sdk-py
> Affects Versions: First stable release
> Reporter: Robert Bradshaw
> Assignee: Robert Bradshaw
> Fix For: First stable release
>
>
> Justification:
> * Contexts add confusion and complexity to the public API (e.g.
> https://issues.apache.org/jira/browse/BEAM-1448)
> * Leaf (user-written) coders are nearly always nested.
> * Coders are being removed from sources, which was the initial need for
> context.
> * It is unclear how much value, if any, this provides for internal
> performance.
> * There may be performance (as well as simplification) gains in removing this
> for the Fn API.
> Fully removing this distinction from the internals can be defered until the
> last bullet points are more completely investigated.
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