[jira] [Commented] (BEAM-3207) Publicly document primitive transforms and their URNs - give "impulse" a URN

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BEAM-3207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16300596#comment-16300596 ] 

ASF GitHub Bot commented on BEAM-3207:
--------------------------------------

robertwb opened a new pull request #4310:  [BEAM-3207] Create a standard location to enumerate and document URNs.
URL: https://github.com/apache/beam/pull/4310
 
 
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> Publicly document primitive transforms and their URNs - give "impulse" a URN
> ----------------------------------------------------------------------------
>
>                 Key: BEAM-3207
>                 URL: https://issues.apache.org/jira/browse/BEAM-3207
>             Project: Beam
>          Issue Type: Improvement
>          Components: beam-model
>            Reporter: Kenneth Knowles
>            Assignee: Eugene Kirpichov
>              Labels: portability
>
> CC [~herohde]
> The "impulse" transform was discussed and introduced in some contexts, since an SDK with only splittable DoFn needs some way to get things moving, but we don't really have a central place where these specs live, except perhaps the proto comments.
> TBD how best to address the fairly amorphous way these things are introduced and propagated.
> Incidentally we have inconsistent version strings in the draft URNs in the Java codebase, so there's plenty that would also improve in technical quality by having more eyes on it.



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