[FLINK-10327] Pass processWatermark calls from (Co)ProcessOperator to (Co)ProcessFunction - ASF JIRA

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Details

Type: New Feature
Status: Closed
Priority: Major
Resolution: Won't Fix
Affects Version/s: None
Fix Version/s: None
Component/s: None
Labels:
- pull-request-available

Description

Currently CoProcessFunction can not react to changes watermark advancement. By passing processWatermark calls to function we would give a way to perform some actions on watermark advancement, like state clean up or emitting some results after accumulating some data.