Example usage for org.hibernate.stat NaturalIdCacheStatistics getElementCountInMemory

Introduction

In this page you can find the example usage for org.hibernate.stat NaturalIdCacheStatistics getElementCountInMemory.

Prototype

long getElementCountInMemory();

Source Link

Usage

From source file:org.apache.ignite.cache.hibernate.GridHibernateL2CacheSelfTest.java

License:Apache License

/**
 * @param accessType Cache access type.//w w  w  .j av a2 s.  co  m
 * @throws Exception If failed.
 */
private void testRegionClear(AccessType accessType) throws Exception {
    createSessionFactories(accessType);

    try {
        final int ENTITY_CNT = 100;

        Session ses = sesFactory1.openSession();

        try {
            Transaction tx = ses.beginTransaction();

            for (int i = 0; i < ENTITY_CNT; i++) {
                Entity e = new Entity(i, "name-" + i);

                Collection<ChildEntity> children = new ArrayList<>();

                for (int j = 0; j < 3; j++)
                    children.add(new ChildEntity());

                e.setChildren(children);

                ses.save(e);
            }

            tx.commit();
        } finally {
            ses.close();
        }

        loadEntities(sesFactory2, ENTITY_CNT);

        SecondLevelCacheStatistics stats1 = sesFactory1.getStatistics()
                .getSecondLevelCacheStatistics(ENTITY_NAME);
        SecondLevelCacheStatistics stats2 = sesFactory2.getStatistics()
                .getSecondLevelCacheStatistics(ENTITY_NAME);

        NaturalIdCacheStatistics idStats1 = sesFactory1.getStatistics()
                .getNaturalIdCacheStatistics(NATURAL_ID_REGION);
        NaturalIdCacheStatistics idStats2 = sesFactory2.getStatistics()
                .getNaturalIdCacheStatistics(NATURAL_ID_REGION);

        SecondLevelCacheStatistics colStats1 = sesFactory1.getStatistics()
                .getSecondLevelCacheStatistics(CHILD_COLLECTION_REGION);
        SecondLevelCacheStatistics colStats2 = sesFactory2.getStatistics()
                .getSecondLevelCacheStatistics(CHILD_COLLECTION_REGION);

        assertEquals(ENTITY_CNT, stats1.getElementCountInMemory());
        assertEquals(ENTITY_CNT, stats2.getElementCountInMemory());

        assertEquals(ENTITY_CNT, idStats1.getElementCountInMemory());
        assertEquals(ENTITY_CNT, idStats2.getElementCountInMemory());

        assertEquals(ENTITY_CNT, colStats1.getElementCountInMemory());
        assertEquals(ENTITY_CNT, colStats2.getElementCountInMemory());

        // Test cache is cleared after update query.

        ses = sesFactory1.openSession();

        try {
            Transaction tx = ses.beginTransaction();

            ses.createQuery("delete from " + ENTITY_NAME + " where name='no such name'").executeUpdate();

            ses.createQuery("delete from " + ChildEntity.class.getName() + " where id=-1").executeUpdate();

            tx.commit();
        } finally {
            ses.close();
        }

        assertEquals(0, stats1.getElementCountInMemory());
        assertEquals(0, stats2.getElementCountInMemory());

        assertEquals(0, idStats1.getElementCountInMemory());
        assertEquals(0, idStats2.getElementCountInMemory());

        assertEquals(0, colStats1.getElementCountInMemory());
        assertEquals(0, colStats2.getElementCountInMemory());

        // Load some data in cache.

        loadEntities(sesFactory1, 10);

        assertEquals(10, stats1.getElementCountInMemory());
        assertEquals(10, stats2.getElementCountInMemory());
        assertEquals(10, idStats1.getElementCountInMemory());
        assertEquals(10, idStats2.getElementCountInMemory());

        // Test evictAll method.

        sesFactory2.getCache().evictEntityRegion(ENTITY_NAME);

        assertEquals(0, stats1.getElementCountInMemory());
        assertEquals(0, stats2.getElementCountInMemory());

        sesFactory2.getCache().evictNaturalIdRegion(ENTITY_NAME);

        assertEquals(0, idStats1.getElementCountInMemory());
        assertEquals(0, idStats2.getElementCountInMemory());

        sesFactory2.getCache().evictCollectionRegion(CHILD_COLLECTION_REGION);

        assertEquals(0, colStats1.getElementCountInMemory());
        assertEquals(0, colStats2.getElementCountInMemory());
    } finally {
        cleanup();
    }
}

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