JingsongLi opened a new pull request #13694:
URL: https://github.com/apache/flink/pull/13694
## What is the purpose of the change
Introduce new Providers and parallelism API
PR for All Public API.
## Brief change log
- Introduce SourceProvider
- Introduce DataStreamSourceProvider
- Introduce DataStreamSinkProvider
- Introduce ParallelismProvider
- Introduce SINK_PARALLELISM option
## Verifying this change
This change is a trivial rework / code cleanup without any test coverage.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: yes
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? yes
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