[KAFKA-12925] prefixScan missing from intermediate interfaces - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Critical
Resolution: Fixed
Affects Version/s: 2.8.0
Fix Version/s: 2.8.1, 3.0.0
Component/s: streams
Labels:
None

Description

KIP-614 and KAFKA-10648 introduced support for prefixScan to StateStores.

It seems that many of the intermediate StateStore interfaces are missing a definition for prefixScan, and as such is not accessible in all cases.

For example, when accessing the state stores through a the processor context, the KeyValueStoreReadWriteDecorator and associated interfaces do not define prefixScan and it falls back to the default implementation in KeyValueStore, which throws UnsupportedOperationException.