paul8263 opened a new pull request #18405:
URL: https://github.com/apache/flink/pull/18405
…Stream then window process in batch mode
## What is the purpose of the change
Changed AbstractStreamOperator by extending BoundedMultiInput and set the
key to a designed value when the input reaches END_OF_DATA. Thus, in batch mode
it will trigger notifyKeySelected and finally all elements will be collected.
## Brief change log
-
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/AbstractStreamOperator.java
-
flink-streaming-java/src/test/java/org/apache/flink/streaming/api/operators/AbstractStreamOperatorTest.java
## Verifying this change
This change added tests and can be verified as follows:
- Added test that verifies the current key is set to EndOfDataKey.INSTANCE
after the operator finishes.
## 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)`: no
- 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, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
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