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https://issues.apache.org/jira/browse/BEAM-25?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15634920#comment-15634920
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ASF GitHub Bot commented on BEAM-25:
------------------------------------
GitHub user kennknowles opened a pull request:
https://github.com/apache/incubator-beam/pull/1281
[BEAM-25] Generalized extra context factory
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---
R: @jkff
Only the last commit is new. This makes it so each "extra" parameter gets
to return a wholly arbitrary stack manipulation. This will be needed to pass
the parameters for state and timers. I am proposing it now because it also
cleans up the type casting, and will make downcasting of the window type a
trivial act in parallel with other developments.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kennknowles/incubator-beam
Generalized-ExtraContextFactory
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-beam/pull/1281.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 #1281
----
commit 880a538f4ad43d6399bd873c7b6cb7a786a13b6a
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-01T22:38:01Z
Add TypeDescriptor#getTypes
commit 340d922503c06d3a82e964ef0fdf1e04713e40b9
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-01T21:48:54Z
Switch DoFnSignature, etc, from TypeToken to TypeDescriptor
commit 3061436c8719b073a3d5176566ea5e6493224e9c
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-01T21:50:24Z
DoFnSignature: Make TypeDescriptor-returning methods public
commit e117ac82cfabcb8b9729e13c98647c799ea7caf3
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-01T04:30:40Z
Refactor and reuse parameter analysis in DoFnSignatures
commit 8610daa593cd4113ef033391c0d95e77dd513922
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-04T01:42:25Z
Generalize extraction of DoFn parameters from context
----
> Add user-ready API for interacting with state
> ---------------------------------------------
>
> Key: BEAM-25
> URL: https://issues.apache.org/jira/browse/BEAM-25
> Project: Beam
> Issue Type: Sub-task
> Components: sdk-java-core
> Reporter: Kenneth Knowles
> Assignee: Kenneth Knowles
> Labels: State
>
> Our current state API is targeted at runner implementers, not pipeline
> authors. As such it has many capabilities that are not necessary nor
> desirable for simple use cases of stateful ParDo (such as dynamic state tag
> creation). Implement a simple state intended for user access.
> (Details of our current thoughts in forthcoming design doc)
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