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https://issues.apache.org/jira/browse/BEAM-25?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15684574#comment-15684574
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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/1399
[BEAM-25] Direct runner state
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---
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kennknowles/incubator-beam DirectRunner-state
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-beam/pull/1399.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 #1399
----
commit 9d35e9f715f2c76ae54f3b304e41d1dbdf8c0f92
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-16T05:33:01Z
Reject stateful DoFn in ApexRunner
commit aab81549a70d1ac3f6580f66759566f673c243b8
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-16T05:33:13Z
Reject stateful DoFn in SparkRunner
commit 0c2aa666ecaf7def9fa28c6dc81b90c3ad0dc873
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-16T05:33:28Z
Reject stateful DoFn in FlinkRunner
commit ec12dd3102d0a76e5b4cf7ad0a503b746e165d01
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-16T05:35:03Z
Reject stateful DoFn in DataflowRunner
commit a66e71fb92734f6d423ce9ee012812322992ba40
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-10T05:10:51Z
Add State parameter support to SimpleDoFnRunner
commit 8a058b14ab4084ee122d396f96ef2b76d86d3368
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-21T19:34:45Z
Remove overspecified type in ParDoEvaluator
commit 677155a6148ea383065c1792db49e283e466cef1
Author: Kenneth Knowles <[email protected]>
Date: 2016-11-10T05:59:15Z
Add support for Stateful ParDo in the Direct runner
This adds overrides and new evaluators to ensure that
state is accessed in a single-threaded manner per key
and is cleaned up when a window expires.
----
> 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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