GitHub user jkff opened a pull request:
https://github.com/apache/incubator-beam/pull/1261
Makes Splittable DoFn in the direct runner great again
- Makes `ProcessFn` be a primitive transform with its own `ParDoEvaluator`.
As a nice side effect, this enables the runner to provide additional hooks into
it - e.g. for giving the runner access to the restriction tracker (in later PRs)
- For consistency, moves declaration of `GBKIntoKeyedWorkItems` primitive
transform into `SplittableParDo`, alongside the `SplittableProcessElements`
transform
- Adds support for side inputs and outputs to SDF
- Preserves compressed representation of `WindowedValue`'s in
`PushbackSideInputDoFnRunner`
- Teaches `ProcessFn` to work with exploded windows inside the
`KeyedWorkItem`. It works with them by un-exploding the windows in the
`Iterable<WindowedValue<ElementAndRestriction>>` into a single `WindowedValue`,
since the values and timestamps are guaranteed to be the same.
Tests for new features pending.
R: @kennknowles @tgroh
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jkff/incubator-beam enable-sdf
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-beam/pull/1261.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 #1261
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commit c50b42ccf60ab83f519c550edc2ccd048ed6b213
Author: Eugene Kirpichov <kirpic...@google.com>
Date: 2016-10-26T23:05:01Z
Stuff compiles
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