| This is my entity: public class PersonItem implements Serializable { @Id @Column(name="col1") private String guid; @Column(name="col2") private String name; @Column(name="col3") private String surname; @Column(name="col4") private Date birthDate; //+getters and setters } This is how I get the list of persons: Query query = em.createQuery("Select p from PersonItem p WHERE p.guid IN (:guids)");
EntityGraph<PersonItem> eg = em.createEntityGraph(PersonItem.class);
eg.addAttributeNodes("guid");
eg.addAttributeNodes("name");
eg.addAttributeNodes("surname");
query.setHint("javax.persistence.fetchgraph", eg);
query.setParameter("guids", guids);
List<PersonItem> list=query.getResultList();
em.close();
// And now I iterate result AFTER EM CLOSE
....iterate If I understand fetch graph correcly it must load only those fields, which I specified. However, the field "birthDate" is also loaded. Besides I see that in hibernate sql query 4 columns are selected. How to fix it? I use hibernate 5.1.0 as JPA provider. |