Examples with CacheRegionStatistics org.hibernate.stat.CacheRegionStatistics used on opensource projects

Example 1 with CacheRegionStatistics

use of org.hibernate.stat.CacheRegionStatistics in project hibernate-orm by hibernate.

the class SecondLevelCacheTest method testCache.

@Test
public void testCache() {
    doInJPA(this::entityManagerFactory, entityManager -> {
        entityManager.persist(new Person());
        Person aPerson = new Person();
        aPerson.setName("John Doe");
        aPerson.setCode("unique-code");
        entityManager.persist(aPerson);
        return aPerson;
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        log.info("Jpa load by id");
        // tag::caching-entity-jpa-example[]
        Person person = entityManager.find(Person.class, 1L);
    // end::caching-entity-jpa-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        log.info("Native load by id");
        Session session = entityManager.unwrap(Session.class);
        // tag::caching-entity-native-example[]
        Person person = session.get(Person.class, 1L);
    // end::caching-entity-native-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        log.info("Native load by natural-id");
        Session session = entityManager.unwrap(Session.class);
        // tag::caching-entity-natural-id-example[]
        Person person = session.byNaturalId(Person.class).using("code", "unique-code").load();
        // end::caching-entity-natural-id-example[]
        assertNotNull(person);
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        log.info("Jpa query cache");
        // tag::caching-query-jpa-example[]
        List<Person> persons = entityManager.createQuery("select p " + "from Person p " + "where p.name = :name", Person.class).setParameter("name", "John Doe").setHint("org.hibernate.cacheable", "true").getResultList();
    // end::caching-query-jpa-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        log.info("Native query cache");
        Session session = entityManager.unwrap(Session.class);
        // tag::caching-query-native-example[]
        List<Person> persons = session.createQuery("select p " + "from Person p " + "where p.name = :name").setParameter("name", "John Doe").setCacheable(true).list();
    // end::caching-query-native-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        log.info("Jpa query cache region");
        // tag::caching-query-region-jpa-example[]
        List<Person> persons = entityManager.createQuery("select p " + "from Person p " + "where p.id > :id", Person.class).setParameter("id", 0L).setHint(QueryHints.HINT_CACHEABLE, "true").setHint(QueryHints.HINT_CACHE_REGION, "query.cache.person").getResultList();
    // end::caching-query-region-jpa-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        log.info("Native query cache");
        Session session = entityManager.unwrap(Session.class);
        // tag::caching-query-region-native-example[]
        List<Person> persons = session.createQuery("select p " + "from Person p " + "where p.id > :id").setParameter("id", 0L).setCacheable(true).setCacheRegion("query.cache.person").list();
    // end::caching-query-region-native-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        log.info("Jpa query cache store mode ");
        // tag::caching-query-region-store-mode-jpa-example[]
        List<Person> persons = entityManager.createQuery("select p " + "from Person p " + "where p.id > :id", Person.class).setParameter("id", 0L).setHint(QueryHints.HINT_CACHEABLE, "true").setHint(QueryHints.HINT_CACHE_REGION, "query.cache.person").setHint("javax.persistence.cache.storeMode", CacheStoreMode.REFRESH).getResultList();
    // end::caching-query-region-store-mode-jpa-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        log.info("Native query cache store mode");
        Session session = entityManager.unwrap(Session.class);
        // tag::caching-query-region-store-mode-native-example[]
        List<Person> persons = session.createQuery("select p " + "from Person p " + "where p.id > :id").setParameter("id", 0L).setCacheable(true).setCacheRegion("query.cache.person").setCacheMode(CacheMode.REFRESH).list();
    // end::caching-query-region-store-mode-native-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        Session session = entityManager.unwrap(Session.class);
        // tag::caching-statistics-example[]
        Statistics statistics = session.getSessionFactory().getStatistics();
        CacheRegionStatistics secondLevelCacheStatistics = statistics.getDomainDataRegionStatistics("query.cache.person");
        long hitCount = secondLevelCacheStatistics.getHitCount();
        long missCount = secondLevelCacheStatistics.getMissCount();
        double hitRatio = (double) hitCount / (hitCount + missCount);
        // end::caching-statistics-example[]
        return hitRatio;
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        log.info("Native query cache store mode");
        Session session = entityManager.unwrap(Session.class);
        // tag::caching-query-region-native-evict-example[]
        session.getSessionFactory().getCache().evictQueryRegion("query.cache.person");
    // end::caching-query-region-native-evict-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        // tag::caching-management-cache-mode-entity-jpa-example[]
        Map<String, Object> hints = new HashMap<>();
        hints.put("javax.persistence.cache.retrieveMode ", CacheRetrieveMode.USE);
        hints.put("javax.persistence.cache.storeMode", CacheStoreMode.REFRESH);
        Person person = entityManager.find(Person.class, 1L, hints);
    // end::caching-management-cache-mode-entity-jpa-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        Session session = entityManager.unwrap(Session.class);
        // tag::caching-management-cache-mode-entity-native-example[]
        session.setCacheMode(CacheMode.REFRESH);
        Person person = session.get(Person.class, 1L);
    // end::caching-management-cache-mode-entity-native-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        // tag::caching-management-cache-mode-query-jpa-example[]
        List<Person> persons = entityManager.createQuery("select p from Person p", Person.class).setHint(QueryHints.HINT_CACHEABLE, "true").setHint("javax.persistence.cache.retrieveMode ", CacheRetrieveMode.USE).setHint("javax.persistence.cache.storeMode", CacheStoreMode.REFRESH).getResultList();
        // end::caching-management-cache-mode-query-jpa-example[]
        // tag::caching-management-evict-jpa-example[]
        entityManager.getEntityManagerFactory().getCache().evict(Person.class);
    // end::caching-management-evict-jpa-example[]
    });
    doInJPA(this::entityManagerFactory, entityManager -> {
        Session session = entityManager.unwrap(Session.class);
        // tag::caching-management-cache-mode-query-native-example[]
        List<Person> persons = session.createQuery("select p from Person p").setCacheable(true).setCacheMode(CacheMode.REFRESH).list();
        // end::caching-management-cache-mode-query-native-example[]
        // tag::caching-management-evict-native-example[]
        session.getSessionFactory().getCache().evictQueryRegion("query.cache.person");
    // end::caching-management-evict-native-example[]
    });
}

Example 2 with CacheRegionStatistics

use of org.hibernate.stat.CacheRegionStatistics in project hibernate-orm by hibernate.

the class HibernateCacheTest method testQueryCacheInvalidation.

@Test
public void testQueryCacheInvalidation() throws Exception {
    Session s = sessionFactory().openSession();
    Transaction t = s.beginTransaction();
    Item i = new Item();
    i.setName("widget");
    i.setDescription("A really top-quality, full-featured widget.");
    s.persist(i);
    t.commit();
    s.close();
    CacheRegionStatistics slcs = sessionFactory().getStatistics().getDomainDataRegionStatistics(Item.class.getName());
    assertThat(slcs.getPutCount(), equalTo(1L));
    assertTrue(sessionFactory().getCache().containsEntity(Item.class, i.getId()));
    s = sessionFactory().openSession();
    t = s.beginTransaction();
    i = (Item) s.get(Item.class, i.getId());
    assertThat(slcs.getHitCount(), equalTo(1L));
    assertThat(slcs.getMissCount(), equalTo(0L));
    i.setDescription("A bog standard item");
    t.commit();
    s.close();
    assertThat(slcs.getPutCount(), equalTo(2L));
    assertTrue(sessionFactory().getCache().containsEntity(Item.class, i.getId()));
    final DomainDataRegionTemplate region = (DomainDataRegionTemplate) sessionFactory().getMetamodel().entityPersister(Item.class).getCacheAccessStrategy().getRegion();
    final Object fromCache = region.getCacheStorageAccess().getFromCache(region.getEffectiveKeysFactory().createEntityKey(i.getId(), sessionFactory().getMetamodel().entityPersister(Item.class), sessionFactory(), null), (SharedSessionContractImplementor) s);
    assertNotNull(fromCache);
    ExtraAssertions.assertTyping(AbstractReadWriteAccess.Item.class, fromCache);
    // assertThat( (String) map.get( "description" ), equalTo( "A bog standard item" ) );
    // assertThat( (String) map.get( "name" ), equalTo( "widget" ) );
    // cleanup
    s = sessionFactory().openSession();
    t = s.beginTransaction();
    s.delete(i);
    t.commit();
    s.close();
}