David Jacot created KAFKA-10742:
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Summary: Automated protocol should support java.util.Optional
Key: KAFKA-10742
URL: https://issues.apache.org/jira/browse/KAFKA-10742
Project: Kafka
Issue Type: Improvement
Reporter: David Jacot
Assignee: David Jacot
The AK protocol often relies on sentinel value (e.g. null or -1) to indicate
that a field was not provided. Usually, these sentinels are turned into
java.util.Optional that is empty when the field is equal to the sentinel. Until
now, we were doing this transformation while mapping the Struct to internal
Request or Response classes. With the generated protocol, we would like to get
rid of these internal classes and also avoid spending time to construct them.
To get there, the automated protocol should support java.util.Optional.
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