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https://issues.apache.org/jira/browse/KAFKA-7075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias J. Sax updated KAFKA-7075:
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Issue Type: Bug (was: Improvement)
> Allow Topology#addGlobalStore to add a window store
> ---------------------------------------------------
>
> Key: KAFKA-7075
> URL: https://issues.apache.org/jira/browse/KAFKA-7075
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: Guozhang Wang
> Priority: Major
> Labels: newbie
>
> Today although {{Topology#addGlobalStore}} can take any {{StateStore}} types,
> the internal implementation {{InternalTopologyBuilder#addGlobalStore}} only
> accepts {{StoreBuilder<KeyValueStore>}}. It means if users pass in a windowed
> store builder in {{Topology#addGlobalStore}} it will cause a runtime
> ClassCastException.
> We should fix this issue by relaxing the {{InternalTopologyBuilder}}.
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