Using TaggedFieldSerializer ( or any other to mantain backwards compatibility )

[Aldo Bucchi]

Hi,

Is it possible to use TaggedFieldSerializer or CompatibleFieldSerializer with Chill?

I am storing some objects long term and we will be adding fields to the classes ( not removing or chancing types ).

Any other idea on how to handle this is more than welcome ;)

Thanks!

A

[Brian KimJohnson]

Greetings,

I am also looking for information about how to change the default serializer to CompatibleFieldSerializer.  Any examples or pointers would be appreciated.

Brian

[ilca...@gmail.com]

You have to use scala meta annotations so that the @Tag is in the resulting field and not in the constructor param

case class Person(@(Tag @field)(1) name: String, @(Tag @field)(2) age: Int)

and register the serializer

kryo.register(classOf[Person], new TaggedFieldSerializer(kryo, classOf[Person]))

[john.su...@dowjones.com]

This is working for me right now:

  kryo.setDefaultSerializer(classOf[CompatibleFieldSerializer[_]])

I know your query has been around for a while. Hope this helps anyway. Best, John