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https://issues.apache.org/jira/browse/FLINK-4367?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weijie Guo closed FLINK-4367.
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Fix Version/s: (was: 2.0-preview)
Resolution: Invalid
> Offer separate API for watermark generation and timestamp extraction
> --------------------------------------------------------------------
>
> Key: FLINK-4367
> URL: https://issues.apache.org/jira/browse/FLINK-4367
> Project: Flink
> Issue Type: Sub-task
> Components: API / DataStream
> Affects Versions: 1.1.0
> Reporter: Robert Metzger
> Priority: Major
>
> Right now, the {{AssignerWithPunctuatedWatermarks}} and
> {{AssignerWithPeriodicWatermarks}} interfaces also require implementing a
> {{TimestampAssigner}}.
> For cases where the source emits records with timestamps, its not necessary
> to extract timestamps again from the records, we just want to generate
> watermarks.
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