This PR exposes hooks for `processWatermark`, `processWatermark1` and `processWatermark2` to `ProcessFunction` and `CoProcessFunction`.
## Verifying this change Added new tests to `ProcessOperatorTest` and `CoProcessOperatorTest` ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (yes / **no**) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (**yes** / no) - The serializers: (yes / **no** / don't know) - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know) - The S3 file system connector: (yes / **no** / don't know) ## Documentation - Does this pull request introduce a new feature? (**yes** / no) - If yes, how is the feature documented? (not applicable / docs / **JavaDocs** / not documented) [ Full content available at: https://github.com/apache/flink/pull/6687 ] This message was relayed via gitbox.apache.org for [email protected]
