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https://issues.apache.org/jira/browse/SPARK-16407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15491779#comment-15491779
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Reynold Xin commented on SPARK-16407:
-------------------------------------
Actually I spoke too soon. I only read the code change and didn't read the
description on the pr. I think the high level idea to pass in a sink object
makes sense, but I don't think the goal should be to support foreachRdd,
because that goes directly against the spirit of one of the high level goals of
structured streaming: decouple the logical plan from the physical execution,
which includes not exposing batches to the end-user.
> Allow users to supply custom StreamSinkProviders
> ------------------------------------------------
>
> Key: SPARK-16407
> URL: https://issues.apache.org/jira/browse/SPARK-16407
> Project: Spark
> Issue Type: Improvement
> Components: Streaming
> Reporter: holdenk
>
> The current DataStreamWriter allows users to specify a class name as format,
> however it could be easier for people to directly pass in a specific provider
> instance - e.g. for user equivalent of ForeachSink or other sink with
> non-string parameters.
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