JPA / OpenJPA Same value in all rows

Question

I have a problem with OpenJPA

I try to read all rows from a table but the primary key has always a same value(value = 0)!?!?!?

for (Object o : em.createQuery("select x from AnnouncementsEntry x")
                .getResultList()) {
            //alway returns "0" in every row
                long id = ((AnnouncementsEntry) o).getEntryId();

my entry:

@Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private Long entryId;

Answer 1

The foreach loop executes same database query every time in each iteration. execute query before starting foreach loop and In for each loop iterate over the result.