On Thu, Jan 6, 2022 at 10:58 AM Reji Mathews <[email protected]> wrote:
> Hello !
>
> I have a requirement where I need to select the concrete class based on
> presence of a key field in my json
>
> I have a base abstract class Activity.java which is extended by
> CommandActivity.java and ViewActivity.java
>
> Ex -
> =====
> Json 1
>
> {
> "command" : "abc"
> "parameters" : ["ls"]
> "user" : "iamuser1"
> "origin" : "asia"
> }
>
> Json2
>
> {
> "view" : "C001"
> "resource":"XYZ"
> "user" : "iamuser2"
> "origin" : "US"
> }
>
> Based on presence of key command or view, jackson needs to select the
> right concrete class for deserizliation.
>
> Wondering if this feature is available already in the framework? If
> someone had similar problem solved earlier, would be awesome if you can
> share the code snippet
>
This sounds like it might be solvable using Jackson 2.12 added "infer" type:
https://cowtowncoder.medium.com/jackson-2-12-most-wanted-1-5-deduction-based-polymorphism-c7fb51db7818
of polymorphic deserialization?
-+ Tatu +-
> Cheers
> Reji
>
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