godfreyhe opened a new pull request #13760:
URL: https://github.com/apache/flink/pull/13760
## What is the purpose of the change
*This pr aims to introduce multiple input operator for batch. The logic in a
multiple input operator is similar to OperatorChain, mainly including:
initialize all sub-operators, initialize the Input list of the multiple input
operator, connect each sub-operator via Output, delegate open/close/dispose
action to each sub-operator, etc*
## Brief change log
- *Introduce OneInput, FirstInputOfTwoInput, SecondInputOfTwoInput,
InputSelectionHandler for multiple input operator*
- *Introduce different Output sub-classes for multiple input operator*
- *Introduce multiple input operator for batch*
## Verifying this change
This change added tests and can be verified as follows:
- *Added InputTest to verify different kinds of Input*
- *Added OutputTest to verify different kinds of Output*
- *Added BatchMultipleInputStreamOperatorTest to verify all actions of
BatchMultipleInputStreamOperator*
## 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, Kubernetes/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)
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
