Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/1764#issuecomment-204508742
The code looks good now.
- How about we move all the convenience timestamp extractors / watermark
generators into a separate packe `.functions.timestamps`?
**Docs**
I am a bit unsure about the docs. They seem to get confusing now. What is a
mechanism (periodic / punctuated), what is just a convenience implementation
(Ascending, BoundedOutOfOrderness).
How about leaving the docs page on watermark generation as it is and add
another sub-page that lists pre-defined watermark generators. We would list all
the future watermark generators there:
- ascending timestamps
- bounded out-of-orderness
- historgam based
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