Hi,
I am experiencing trouble with this query hint
@NamedQuery(name = "getAllDepartmentsCached", query = "select d from Department d", hints = { @QueryHint(name = QueryHints.QUERY_RESULTS_CACHE, value = HintValues.TRUE) })
@Cacheable(true)
@Entity
public class Entity Department {
…
The first time, I am executing the named query, I get the expected result. But if I execute it again, the result is empty:
public void testCachedQueryWithoutParameters() throws SQLException {
init();
EntityManager em = getEnvironment().getEntityManager();
try {
Query query = em.createNamedQuery("getAllDepartmentsCached");
List<Department> result = query.getResultList();
assertEquals(result.size(), 2);
result = query.getResultList();
assertEquals(result.size(), 2); <<<<< size is 0 now!
} finally {
closeEntityManager(em);
}
}
Are there any preconditions I’d have to fulfill in order to uses the QUERY_RESULTS_CACHE hint?
I have switched the default caching off:
<property name="eclipselink.cache.shared.default" value="false"/>
Any ideas?
-Adrian
