Michael Viamari created KAFKA-12925:
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Summary: StateStore::prefixScan missing from intermediate
interfaces
Key: KAFKA-12925
URL: https://issues.apache.org/jira/browse/KAFKA-12925
Project: Kafka
Issue Type: Bug
Components: streams
Affects Versions: 2.8.0
Reporter: Michael Viamari
[KIP-614|https://cwiki.apache.org/confluence/display/KAFKA/KIP-614%3A+Add+Prefix+Scan+support+for+State+Stores]
and [KAFKA-10648|https://issues.apache.org/jira/browse/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}}.
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