Shimin Yang created FLINK-14003:
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Summary: Add access to customized state other than built in state
types
Key: FLINK-14003
URL: https://issues.apache.org/jira/browse/FLINK-14003
Project: Flink
Issue Type: Wish
Components: Runtime / State Backends
Reporter: Shimin Yang
Currently the keyed state backend supports states like value, list, map,
although they are quite useful, but it may not fits all user cases.
User can develop their customized state backend based on different data store
as a plugin, but they do not have access to customized state if the type is not
one of those built-in types.
I propose to add getPartitionedState method to RuntimeContext and
KeyedStateStore interface to allow user to access their customized state, and
it will not affect current code path.
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