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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (BEAM-27) Add user-ready API for interacting with timers
Date Tue, 18 Oct 2016 22:29:58 GMT


ASF GitHub Bot commented on BEAM-27:

GitHub user kennknowles opened a pull request:

    [BEAM-27] Add parsing and validation of @StateId params to @ProcessElement

    Be sure to do all of the following to help us incorporate your contribution
    quickly and easily:
     - [x] Make sure the PR title is formatted like:
       `[BEAM-<Jira issue #>] Description of pull request`
     - [x] Make sure tests pass via `mvn clean verify`. (Even better, enable
           Travis-CI on your fork and ensure the whole test matrix passes).
     - [x] Replace `<Jira issue #>` in the title with the actual Jira issue
           number, if there is one.
     - [x] If this contribution is large, please file an Apache
           [Individual Contributor License Agreement](
    R: @bjchambers @jkff 
    This is an initial draft to discuss some design decisions along the way.

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

    $ git pull State-params

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

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

    This closes #1130
commit 33c884118ed04c0a008ef6018a06fa336a866de8
Author: Kenneth Knowles <>
Date:   2016-10-14T17:51:57Z

    Use the correct State class in DoFnSignatures

commit 81b6994bf8162bfc3aaba40a708ce8385be76d80
Author: Kenneth Knowles <>
Date:   2016-10-14T18:07:55Z

    Add analysis and validation of State parameters to DoFn.ProcessElement


> Add user-ready API for interacting with timers
> ----------------------------------------------
>                 Key: BEAM-27
>                 URL:
>             Project: Beam
>          Issue Type: Sub-task
>          Components: sdk-java-core
>            Reporter: Kenneth Knowles
>            Assignee: Kenneth Knowles
> Pipeline authors will benefit from a different factorization of interaction with underlying
timers. The current APIs are targeted at runner implementers.

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