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https://issues.apache.org/jira/browse/KAFKA-8829?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias J. Sax updated KAFKA-8829:
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Component/s: streams
> Provide factories for creating Window instances
> -----------------------------------------------
>
> Key: KAFKA-8829
> URL: https://issues.apache.org/jira/browse/KAFKA-8829
> Project: Kafka
> Issue Type: New Feature
> Components: streams
> Affects Versions: 2.3.0
> Reporter: Marcos Passos
> Priority: Major
>
> The API provides no ways to create {{Window}} instances without relying on
> internal classes.
> The issue becomes more evident when using session stores as both {{put}} and
> {{remove}} methods expects a windowed key, but the API does not expose any
> way to create a proper session-windowed key in the userland, leaving the
> developer with two choices: a) implement a window that duplicates the logic
> of {{SessionWindow}} or b) relies on the {{SessionWindow}}, which is an
> internal class.
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