NamedQuery in orm.xml

Question

Hi,
I want to keep all my queries into orm.xml because I need to avoid select statements in my code. I got the following in my orm.xml:
     <named-query name="Person.basic">
          <query>SELECT p FROM Person p WHERE p.name LIKE :name</query>
     </named-query>
And then I make the query:
     Query query = em.createNamedQuery("Person.basic");
What I need now is to access the query string in order to add a dynamic condition. It would be something like this:
     String newQuery = query.getQueryString() + "AND p.surname LIKE :surname";
     Query q2 = em.createQuery(newQuery);
Is there a way to do this? I know I can put this condition inside orm.xml, but what if the user fills a
search form with different fields and different combinations?
Regards

Answer 1

at the beginning of your post, you said you didn't want sql queries in your code. but, then you ask how you can put queries in your code...?
named queries cannot be modified at runtime. the point of them is to avoid hard coding sql queries into your code (as you mentioned). if you need to generate queries at runtime, named queries are not going to work for you.