How do you handle generic maps ( that can be nested) while fetching json from server with a simple generic Entity interface

[Debasish Padhy]

I want to have a simple generic Entity interface pretty much like a map 

such as 

public interface Entity extends JsonBuilder {

    public String JsonObject getProperty(String property) ;

    public Entity setProperty(String name , JsonObject obj ) ;

    public String getPropertyType(String property) /* returns the actual
   
}

I want to be able to convert any pojo on server side to a Map form along with some type info and retrieve it on client as an Entity. 

Is this doable ? If yes. Please give some detailed guidelines. 

I have posted the same question on http://stackoverflow.com/questions/27226532/generic-entity-interface-on-gwt-client-side-while-using-gwtquery 

Please feel free to respond there if you use SO. 

thanks a ton. 

[Debasish Padhy]

Do you think this will serve my purpose ? If yes - how will the underlying json string look like ?

        public interface Tuple extends JsonBuilder {

               public JsonValue get(String name);

               public void set(String name, JsonValue ser);

       }

       public interface Entity extends Tuple {

               public String getType();

               public Tuple[] getTuples();

       }