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https://issues.apache.org/jira/browse/AVRO-2243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vamsi Subhash Achanta updated AVRO-2243:
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    Labels: pull-request-available  (was: )

> Add support for adding Union types for a Class without @Union annotation when 
> not possible to mutate the class
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: AVRO-2243
>                 URL: https://issues.apache.org/jira/browse/AVRO-2243
>             Project: Avro
>          Issue Type: Improvement
>          Components: java
>    Affects Versions: 1.8.2
>            Reporter: Vamsi Subhash Achanta
>            Priority: Major
>              Labels: pull-request-available
>
> This patch facilitates the addition of Union types for a given class. This is 
> equivalent to adding an @Union annotation with values. But this can help in 
> cases where you cannot mutate the class to annotate it (or don't want to use 
> java-agent to transform/mutate the class at runtime). 
> UseCase:
> In our project, we are using ReflectData to generate schema for external jar 
> imported classes which cannot be mutated. In this scenario, we cannot add 
> @Union annotation to the base class to add all implemenations of the derived 
> classes. So, when generating schema, the derived classes are not included.
> This patch will enable us to add the union type information so that 
> ReflectData can generate the schema with union types also in it.
> Please let us know if you have any questions. I would make corresponding 
> changes. Thanks



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