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https://issues.apache.org/jira/browse/BEAM-646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15864094#comment-15864094
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ASF GitHub Bot commented on BEAM-646:
-------------------------------------
GitHub user tgroh opened a pull request:
https://github.com/apache/beam/pull/1995
[BEAM-646] Add ReplaceOutputs to PTransformOverrideFactory
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---
This maps the outputs produced by applying a Replacement PTransform to
the outputs produced by the original PTransform.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tgroh/beam replacement_output
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/beam/pull/1995.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 #1995
----
commit f46459d3179c7d3aaa675bff2f88e15fca1ae883
Author: Thomas Groh <tg...@google.com>
Date: 2017-02-09T19:11:23Z
Add ReplaceOutputs to PTransformOverrideFactory
This maps the outputs produced by applying a Replacement PTransform to
the outputs produced by the original PTransform.
----
> Get runners out of the apply()
> ------------------------------
>
> Key: BEAM-646
> URL: https://issues.apache.org/jira/browse/BEAM-646
> Project: Beam
> Issue Type: Improvement
> Components: beam-model-runner-api, sdk-java-core
> Reporter: Kenneth Knowles
> Assignee: Thomas Groh
>
> Right now, the runner intercepts calls to apply() and replaces transforms as
> we go. This means that there is no "original" user graph. For portability and
> misc architectural benefits, we would like to build the original graph first,
> and have the runner override later.
> Some runners already work in this manner, but we could integrate it more
> smoothly, with more validation, via some handy APIs on e.g. the Pipeline
> object.
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