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https://issues.apache.org/jira/browse/BEAM-1195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15867254#comment-15867254
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ASF GitHub Bot commented on BEAM-1195:
--------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/beam/pull/1988


> Give triggers a cross-language serialization schema
> ---------------------------------------------------
>
>                 Key: BEAM-1195
>                 URL: https://issues.apache.org/jira/browse/BEAM-1195
>             Project: Beam
>          Issue Type: New Feature
>          Components: beam-model-runner-api
>            Reporter: Kenneth Knowles
>            Assignee: Kenneth Knowles
>
> We have recently gotten to the point where triggers are just syntax, but it 
> is still shipped via Java serialization. To make it language-independent, we 
> need a concrete syntax.
> Something like the following is fairly concise, tag adjacent to payload. I 
> haven't bothered making up fully verbose/namespaced URNs here.
> {code}
> {
>     "$urn": "OrFinally",
>     "main": {
>       "$urn": "EndOfWindow",
>       "early": <foo>
>     },
>     "finally": {
>       "$urn": "AfterCount",
>       "count": 45
>     }
> }
> {code}



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