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https://issues.apache.org/jira/browse/FLINK-29944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17630777#comment-17630777
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luoyuxia commented on FLINK-29944:
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Thanks for contributing. From the pr, seems it changes the public interface, I
think it'll need a FLIP.
> Support accumulator in source reader
> ------------------------------------
>
> Key: FLINK-29944
> URL: https://issues.apache.org/jira/browse/FLINK-29944
> Project: Flink
> Issue Type: Improvement
> Components: API / DataStream
> Affects Versions: 1.17.0
> Reporter: hk__lrzy
> Priority: Critical
> Labels: pull-request-available
>
> Source Reader is mainly for union batch and streaming logic in single
> interface, it's good point for the developer, but in the {{SourceFunction}}
> we can access {{runtimeconext}} to use accumulator before, now the
> {{SourceReaderContext}} have no method for it, this PR is mainly to support
> it.
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