[
https://issues.apache.org/jira/browse/BEAM-1316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15838870#comment-15838870
]
Daniel Halperin commented on BEAM-1316:
---------------------------------------
I think one many need to output in finish bundle using the current "buffer, and
flush half-full if this is the end of the bundle" pattern.
> DoFn#startBundle and #finishBundle should not be able to output
> ---------------------------------------------------------------
>
> Key: BEAM-1316
> URL: https://issues.apache.org/jira/browse/BEAM-1316
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Thomas Groh
>
> While within startBundle and finishBundle, the window in which elements are
> output is not generally defined. Elements must always be output from within a
> windowed context, or the {{WindowFn}} used by the {{PCollection}} may not
> operate appropriately.
> startBundle and finishBundle are suitable for operational duties, similarly
> to {{setup}} and {{teardown}}, but within the scope of some collection of
> input elements. This includes actions such as clearing field state within a
> DoFn and ensuring all live RPCs complete successfully before committing
> inputs.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
