How to retrieve only certain fields of an entity in JPQL or HQL? What is the equivalent of ResultSet in JPQL or HQL?

Question

In JPQL, I can retrieve entities by :

query = entityManager.createQuery(\"select c from Category c\");
List categories = query.getResultList(         


        

Answer 1

It is not the use of the .list() function itself which makes the result a List. It is the specification of fields (c.id, c.name) in the HQL query. If your query is

    "select c from Category c"

Then query.list() will return a List object.