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https://issues.apache.org/jira/browse/KAFKA-17178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17986071#comment-17986071
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Mickael Maison commented on KAFKA-17178:
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Removing the target version since the KIP has not yet been voted.
> Update KTable.transformValues to new Processor API
> --------------------------------------------------
>
> Key: KAFKA-17178
> URL: https://issues.apache.org/jira/browse/KAFKA-17178
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Matthias J. Sax
> Assignee: Matthias J. Sax
> Priority: Major
> Labels: kip
>
> The original Processor API was replace by a type-safe version using `Record`
> instead of K/V pairs. The old PAPI is already mainly deprecated and will be
> remove to large parts in 4.0 release.
> However, `KTable.transformValues` is still using the old PAPI, and should be
> updated to use the new `api.FixedKeyProcessor` instead of the old
> `ValueTransformerWithKey`.
> The method `transformValues` should be deprecated and replaced with
> `processValues` to `KTable.processValues`.
> At the same time, the old interfaces `ValueTransformerWithKey` and
> `ValueTransfromerWithKeySupplier` should be deprecated.
> KIP-1128:
> [https://cwiki.apache.org/confluence/display/KAFKA/KIP-1128%3A+Replace+KTable.transformValues+with+KTable.processValues]
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