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Posted to jira@kafka.apache.org by "Daniyar Yeralin (JIRA)" <ji...@apache.org> on 2019/05/06 17:45:00 UTC

[jira] [Commented] (KAFKA-8326) Add List Serde

    [ https://issues.apache.org/jira/browse/KAFKA-8326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16834053#comment-16834053 ] 

Daniyar Yeralin commented on KAFKA-8326:
----------------------------------------

TODO: once implementation is finalized and approved proceed with writing test cases for List Serde

> Add List<T> Serde
> -----------------
>
>                 Key: KAFKA-8326
>                 URL: https://issues.apache.org/jira/browse/KAFKA-8326
>             Project: Kafka
>          Issue Type: Improvement
>          Components: clients, streams
>            Reporter: Daniyar Yeralin
>            Priority: Minor
>
> I propose adding serializers and deserializers for the java.util.List class.
> I have many use cases where I want to set the key of a Kafka message to be a UUID. Currently, I need to turn UUIDs into strings or byte arrays and use their associated Serdes, but it would be more convenient to serialize and deserialize UUIDs directly.
> I believe there are many use cases where one would want to have a List serde. Ex. [https://stackoverflow.com/questions/41427174/aggregate-java-objects-in-a-list-with-kafka-streams-dsl-windows], [https://stackoverflow.com/questions/46365884/issue-with-arraylist-serde-in-kafka-streams-api]
>  
> KIP Link: [https://cwiki.apache.org/confluence/display/KAFKA/KIP-466%3A+Add+support+for+List%3CT%3E+serialization+and+deserialization]



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