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https://issues.apache.org/jira/browse/BEAM-1918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16347638#comment-16347638
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Kenneth Knowles commented on BEAM-1918:
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It is detected before the job is submitted to a runner. So it is not
compile-time but it is "static" from the point of view of the Beam model - you
won't actually launch a big data computation with a broken DoFn. I don't think
that we want to do this ticket.
> a BasicDoFn with abstract methods
> ---------------------------------
>
> Key: BEAM-1918
> URL: https://issues.apache.org/jira/browse/BEAM-1918
> Project: Beam
> Issue Type: Wish
> Components: sdk-java-core
> Reporter: Xu Mingmin
> Priority: Major
> Labels: newbie, starter
> Fix For: Not applicable
>
>
> {{DoFn}} use annotations to define the methods, which is not quite
> straight-forward. A {{BasicDoFn}} with default methods, or define as
> abstract, can benefit developers:
> 1. direct view of method descriptor;
> 2. avoid incorrect methods during run-time;
>
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