Gyula Fora created FLINK-3798:
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Summary: Clean up RocksDB state backend access modifiers
Key: FLINK-3798
URL: https://issues.apache.org/jira/browse/FLINK-3798
Project: Flink
Issue Type: Improvement
Components: Streaming Connectors
Reporter: Gyula Fora
Priority: Minor
The RocksDB state backend uses a lot package private methods and fields which
makes it very hard to subclass the different parts for added functionality. I
think these should be protected instead.
Also the AbstractRocksDBState declares some methods final when there are
use-cases when a subclass migh want to call them.
Just to give you an example I am creating a version of the value state which
would keep a small cache on heap. For this it would be enough to subclass the
RockDBStateBackend and RocksDBVAlue state classes if the above mentioned
changes were made. Now I have to use reflection to access package private
fields and actually copy classes due to final methods.
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