Named query and pagination

Question

I am trying to use a named query with pagination, but I am not a database expert, and the answers I found did not help much, they will be grateful for the help, code:

@Entity @NamedQueries({ @NamedQuery(name = "Object.byName", query = "select a from OBJECT a where a.name=?"), }) 

using: findByNamedQuery("Object.byName", a);

I know that I need to use setFirstResult(x); and setMaxResults(y); but how to use them with findByNamedQuery .

Answer 1

You need to work directly with the session / entity manager:

 Query q = entityManager.createNamedQuery("Object.byName"); q.setFirstResult(x); q.setMaxResults(pageSize); //set the parameters here return q.list(); 

This is the JPA syntax; sleep mode is pretty much the same.