GitHub user chamikaramj opened a pull request:

    https://github.com/apache/beam/pull/4064

    [BEAM-1630] Adds support for processing Splittable DoFns using DirectRunner.

    Updates DoFn invocation logic to allow invoking SDF methods.
    Adds SDF machinery that will be common to DirectRunner and other runners.
    Adds DirectRunner specific transform overrides, evaluators, and other logic 
for processing Splittable DoFns.
    
    Follow this checklist to help us incorporate your contribution quickly and 
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    ---


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/chamikaramj/beam sdf_direct_runner_3

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/beam/pull/4064.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #4064
    
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commit 7549b5c2ebe2ae47af9066eaf97364a27e828ab5
Author: [email protected] <[email protected]>
Date:   2017-10-31T08:16:43Z

    Adds support for processing Splittable DoFns using DirectRunner.
    
    Updates DoFnInvocation logic to allow invoking SDF methods.
    Adds SDF machinery that will be common to DirectRunner and other runners.
    Adds DirectRunner specific transform overrides, evaluators, and other logic 
for processing Splittable DoFns.

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