[GitHub] flink pull request: Add support for Subclasses, Interfaces, Abstra...

[StephanEwen <gi...@git.apache.org>]

Github user StephanEwen commented on the pull request:

    https://github.com/apache/flink/pull/236#issuecomment-72432067
  
    That is not a really good solution, IMHO.
    Can we have a special tag that signifies that the deserialization is delegated to Kryo?
    
    How about this flow:
     - If class is `null`, then write null tag.
     - If class is original class, write "same class" tag
     - If class is registered and pojo, handle with pojo logic (tag and write class)
     - If class is registered and not pojo, write kryo tag and delegate to kryo
     - If class is not registered, write kryo tag and delegate to kryo


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