[jira] [Commented] (FLINK-19098) Make Rowdata converters public

["Brian Zhou (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-19098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17187518#comment-17187518 ] 

Brian Zhou commented on FLINK-19098:
------------------------------------

Notify the author of FLINK-16048 [~danny0405] to see if this is appropiate.

> Make Rowdata converters public
> ------------------------------
>
>                 Key: FLINK-19098
>                 URL: https://issues.apache.org/jira/browse/FLINK-19098
>             Project: Flink
>          Issue Type: Improvement
>          Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile), Table SQL / Ecosystem
>    Affects Versions: 1.11.0
>            Reporter: Brian Zhou
>            Priority: Major
>
> Some of the Rowdata converters(SeDer between Rowdata and format objects like GenericRecord/JsonNode) are private or package-private (like Json), this is not easy for other third-party connector projects to utilize to implement its own format factory in Table API.
> For example, Pravega connector is now developing a schema-registry-based format factory. The [Pravega schema registry|https://github.com/pravega/schema-registry] is a rest service similar with confluent registry , but it can help to serialize/deserialize json/avro/protobuf/custom format data. It will help a lot if these converters are public.
> Noticed in FLINK-16048, we have already moved the avro converters out and made them public. Similarly, it should be safe to make at least json and csv format converters public.



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