[jira] [Assigned] (FLINK-13703) AvroTypeInfo requires objects to be strict POJOs (mutable, with setters)

["Robert Metzger (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-13703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Metzger reassigned FLINK-13703:
--------------------------------------

    Assignee: Andrei Leib

> AvroTypeInfo requires objects to be strict POJOs (mutable, with setters)
> ------------------------------------------------------------------------
>
>                 Key: FLINK-13703
>                 URL: https://issues.apache.org/jira/browse/FLINK-13703
>             Project: Flink
>          Issue Type: Improvement
>          Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
>            Reporter: Alexander Fedulov
>            Assignee: Andrei Leib
>            Priority: Minor
>              Labels: pull-request-available
>
> There exists an option to generate Avro sources which would represent immutable objects (`createSetters` option set to false) [\[1\]|https://github.com/commercehub-oss/gradle-avro-plugin] , [\[2\]|https://avro.apache.org/docs/current/api/java/org/apache/avro/mojo/AbstractAvroMojo.html]. Those objects still have full arguments constructors and are being correctly dealt with by Avro. 
>  `AvroTypeInfo` in Flink performs a check to verify if a Class complies to the strict POJO requirements (including setters) and throws an IllegalStateException("Expecting type to be a PojoTypeInfo") otherwise. Can this check be relaxed to provide better immutability support?
> +Steps to reproduce:+
> 1) Generate Avro sources from schema using `createSetters` option.
> 2) Use generated class in `ConfluentRegistryAvroDeserializationSchema.forSpecific(GeneratedClass.class, schemaRegistryUrl)`



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