[Dev] Polymorphic in the JAX-RS Service Interface in JSON

[wenxing zheng]

Dear all,

I have an interface to create a object, like the followings. My question
is: *how to annotate the Animal and Dog/Cat to make sure the input "animal"
can be the instance of Dog/Cat after de-serialization?*

My expectation is that the service createAnimal can be used for all the
sub-classes of Animal.

public class Animal { // All animals have names, for our demo purposes...
     public String name;
     protected Animal() { }
  }

  public class Dog extends Animal {
    public double barkVolume; // in decibels
    public Dog() { }
  }

  public class Cat extends Animal {
    boolean likesCream;
    public int lives;
    public Cat() { }
  }

@Path("/zoo")
public interface ZooService{
    @POST
    @Path("/")
    @Produces(MediaType.APPLICATION_JSON)
    @Consumes(MediaType.APPLICATION_JSON)
    @CSDNSecure
    Response createAnimal(Animal animal);
}

Thanks, Wenxing

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