Hibernate Named Query Order By parameter

Question

Can anyone point me to how we can pass an order by clause as a named parameter to HQL?

Example which works:

select tb from TransportBooking as tb

an         


        

Answer 1

It can be done like this

 order by CASE :orderBy
          WHEN 'pato_id' THEN PATO.id
          WHEN 'last_update_dt' THEN PATO.last_update_dt
     END desc

and you can pass "pato_id" or "last_update_dt" in the setString function like this

 q.setString("orderBy", "last_update_dt");
 or
 q.setString("orderBy", "pato_id");

This works with MS SQL Server, not sure about others.