JPQL returning JSON / Add NamedQueries dynamically

[ederbaum]

Imagine a JPQL query like this:

SELECT JSON{id : p.id, name : p.name, age : p.age} FROM Person p WHERE id=?1

Ok, i know this is impossible (Actually).
But if i could find a Way to Add NamedQueries dynamically to the EntityManagerFactory , i could implement this by Myself.

Someone here know how to do that?

I'm actually adding Annotated Classes and generating the EntityManagerFactory dynamically doing this:

Ejb3Configuration ejb3conf = new Ejb3Configuration();
.....
ejb3conf.addAnnotatedClass(aClass);
...
EntityManagerFactory emf = ejb3conf.buildEntityManagerFactory();

p.s: Sorry, i'm brazilian, and my english isn't so good.