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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (BEAM-362) Move shared runner functionality out of SDK and into runners/core-java
Date Fri, 16 Dec 2016 04:52:59 GMT


ASF GitHub Bot commented on BEAM-362:

GitHub user kennknowles opened a pull request:

    [BEAM-362] Move InMemoryTimerInternals to runners-core

    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
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    R: @jkff (I'll grab a committer later, but your contributions are thing affected)
    The only substantive aspect of this change is the move of the timer internals directly
into `ProcessFn`. I think this is right or at least the right compromise for many reasons.
     - `TimerInternals` is really runner-facing; we don't want that interface in the SDK.
     - Changes to `TimerInternals` incur worker compatibility concerns, so getting it into
runners-core is a win. (I have to change it soon, so I am trying to make my life easier)
     - `DoFnTester` doesn't actually support timers at all, so it didn't make sense for them
to be in there.
     - When `DoFnTester` does support timers, it is trivial to make its own priority queues,
and it will also want to offer greater insight via a richer `TestingTimerInternals` sort of
implementation, which needs not implement the same interface, etc.

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

    $ git pull InMemoryTimerInternals

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 #1643
commit 5d0bf9895654c12e50410a98347eb9177de00b1d
Author: Kenneth Knowles <>
Date:   2016-12-16T04:45:56Z

    Move InMemoryTimerInternals to runners-core


> Move shared runner functionality out of SDK and into runners/core-java
> ----------------------------------------------------------------------
>                 Key: BEAM-362
>                 URL:
>             Project: Beam
>          Issue Type: Improvement
>          Components: runner-core
>            Reporter: Kenneth Knowles
>            Assignee: Kenneth Knowles

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