Je suis nouveau en hibernation et au printemps et j'expérimente le cache de second niveau d'hibernation. Mais ça ne marche pas. J'ai une classe de test suivant:Configuration du cache de second niveau d'hibernation
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:applicationContext.xml" })
@TransactionConfiguration
@Transactional
public class CacheTest extends AbstractTransactionalJUnit4SpringContextTests
{
@Test
public void testCache1()
{
System.out.println("Running testCache1");
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
MutableDAO<AppUser> appUserDAO = new MutableDAOImpl<AppUser>(AppUser.class, (SessionFactory) ctx.getBean("OnMediaSessionFactory"), 10);
assertNotNull("AppUser DAO is null.", appUserDAO);
SessionFactory sessionFactory = (SessionFactory)ctx.getBean("OnMediaSessionFactory");
long numberOfUsers = appUserDAO.countAll();
System.out.println("Number of rows :" + numberOfUsers);
final String cacheRegion = AppUser.class.getCanonicalName();
SecondLevelCacheStatistics settingsStatistics = sessionFactory.getStatistics().
getSecondLevelCacheStatistics(cacheRegion);
StopWatch stopWatch = new StopWatch();
stopWatch.start();
appUserDAO.findAll();
stopWatch.stop();
System.out.println("Query time : " + stopWatch.getTotalTimeSeconds());
System.out.println(settingsStatistics);
}
@Test
public void testCache2()
{
System.out.println("Running testCache2");
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
MutableDAO<AppUser> appUserDAO = new MutableDAOImpl<AppUser>(AppUser.class, (SessionFactory) ctx.getBean("OnMediaSessionFactory"), 10);
assertNotNull("AppUser DAO is null.", appUserDAO);
SessionFactory sessionFactory = (SessionFactory)ctx.getBean("OnMediaSessionFactory");
long numberOfUsers = appUserDAO.countAll();
System.out.println("Number of rows :" + numberOfUsers);
final String cacheRegion = AppUser.class.getCanonicalName();
SecondLevelCacheStatistics settingsStatistics = sessionFactory.getStatistics().
getSecondLevelCacheStatistics(cacheRegion);
StopWatch stopWatch = new StopWatch();
stopWatch.start();
appUserDAO.findAll();
stopWatch.stop();
System.out.println("Query time : " + stopWatch.getTotalTimeSeconds());
System.out.println(settingsStatistics);
}
}
et j'ai
<prop key="hibernate.show_sql">false</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.use_sql_comments">true</prop>
<prop key="hibernate.cache.use_query_cache">true</prop>
<prop key="hibernate.cache.use_second_level_cache">true</prop>
<prop key="hibernate.generate_statistics">true</prop>
<prop key="hibernate.cache.use_structured_entries">true</prop>
mais j'obtenir une sortie comme ceci:
Running testCache1
Number of rows :81
Query time : 0.129
SecondLevelCacheStatistics[hitCount=0,missCount=0,putCount=81,elementCountInMemory=81,elementCountOnDisk=0,sizeInMemory=219634]
Running testCache2
Number of rows :81
Query time : 0.063
SecondLevelCacheStatistics[hitCount=0,missCount=0,putCount=81,elementCountInMemory=81,elementCountOnDisk=0,sizeInMemory=219634]
ce que je dois faire pour le faire fonctionner?
Les classes d'entités elles-mêmes doivent être explicitement fait cacheable - avez-vous fait cela? – skaffman
oui, j'ai @Cache (usage = CacheConcurrencyStrategy.READ_WRITE) – Daniel