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https://issues.apache.org/jira/browse/IGNITE-10297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16701848#comment-16701848
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Artem Malykh commented on IGNITE-10297:
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[~dmitrievanthony] This is already done in IGNITE-10272
> Investigate possibility of restricting API of Upstream transformer
> ------------------------------------------------------------------
>
> Key: IGNITE-10297
> URL: https://issues.apache.org/jira/browse/IGNITE-10297
> Project: Ignite
> Issue Type: Improvement
> Components: ml
> Affects Versions: 2.8
> Reporter: Artem Malykh
> Assignee: Artem Malykh
> Priority: Major
> Fix For: 2.8
>
>
> Signature of 'transform' method of UpstreamTransformer is
> Stream<UpstreamEntry> -> Stream<UpstreamEntry>. For now it is used only for
> bagging and for that purpose, UpstreamEntry -> Stream<UpstreamEntry> would
> suffice (just use 'flatMap' on upstream), maybe we should change signature to
> this form. From other hand, we'll cut some possibilities like limiting of
> upstream. This question needs investigation.
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