Example usage for javax.persistence EntityManager getDelegate

Introduction

In this page you can find the example usage for javax.persistence EntityManager getDelegate.

Prototype

public Object getDelegate();

Source Link

Document

Return the underlying provider object for the EntityManager, if available.

Usage

From source file:org.unitils.orm.jpa.util.provider.hibernate.HibernateJpaProviderSupport.java

/**
 * Checks if the mapping of the JPA entities with the database is still correct.
 *///from  w w  w.ja va  2  s  .  c o  m
public void assertMappingWithDatabaseConsistent(EntityManager entityManager, Object configurationObject) {
    Configuration configuration = (Configuration) configurationObject;
    Dialect databaseDialect = getHibernateDatabaseDialect(configuration);

    HibernateAssert.assertMappingWithDatabaseConsistent(configuration, (Session) entityManager.getDelegate(),
            databaseDialect);
}

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From source file:com.easyjf.core.dao.impl.GenericDAOImpl.java

public void flush() {
    this.getJpaTemplate().execute(new JpaCallback() {
        public Object doInJpa(EntityManager em) throws PersistenceException {
            Session session = (Session) em.getDelegate();
            session.flush();//from w ww.  ja  va2 s  .com
            return null;
        }
    });
}

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From source file:fr.xebia.demo.wicket.blog.service.GenericService.java

@SuppressWarnings("unchecked")
public List<T> list() throws ServiceException {
    try {/*from  ww w  .  ja  va2 s  .co m*/
        EntityManager entityManager = currentEntityManager();

        Criteria criteria = ((Session) entityManager.getDelegate()).createCriteria(getObjectClass());
        criteria.setMaxResults(getMaxResults());
        return criteria.setCacheable(true).list();
    } catch (PersistenceException e) {
        logger.error(e.getCause(), e);
        throw new ServiceException("Can't get object list from database", e);
    } finally {
        closeEntityManager();
    }
}

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From source file:com.impetus.client.couchdb.crud.CouchDBClientTest.java

@Test
@PerfTest(invocations = 10)/*from  w  w  w  .  j  ava  2  s  . co  m*/
public void testCRUDWithBatch() {
    Map<String, String> batchProperty = new HashMap<String, String>(1);
    batchProperty.put(PersistenceProperties.KUNDERA_BATCH_SIZE, "5");
    EntityManagerFactory emf = Persistence.createEntityManagerFactory(_PU, batchProperty);
    EntityManager em = emf.createEntityManager();
    Map<String, Client> clients = (Map<String, Client>) em.getDelegate();
    CouchDBClient client = (CouchDBClient) clients.get(_PU);
    Assert.assertEquals(5, ((Batcher) client).getBatchSize());

    final String originalName = "vivek";

    for (int i = 0; i < 9; i++) {
        PersonCouchDB object = new PersonCouchDB();
        object.setAge(32);
        object.setPersonId(ROW_KEY + i);
        object.setPersonName(originalName);
        em.persist(object);

        if (i >= 5) {
            PersonCouchDB result = (PersonCouchDB) client.find(PersonCouchDB.class, ROW_KEY + i);
            Assert.assertNull(result);
        } else if (i > 0 && i % 4 == 0) {
            PersonCouchDB result = (PersonCouchDB) client.find(PersonCouchDB.class, ROW_KEY + i);
            Assert.assertNotNull(result);
            Assert.assertEquals(result.getPersonId(), object.getPersonId());
            Assert.assertEquals(result.getAge(), object.getAge());
            Assert.assertEquals(result.getPersonName(), object.getPersonName());
        }
    }
    em.flush();
    em.clear();
    em.close();
    em = null;
}

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From source file:org.hibernate.search.demo.SearchDemo.java

private void purge() {
    EntityManager em = emf.createEntityManager();
    em.getTransaction().begin();/*from  ww  w . j av  a 2s.  com*/
    FullTextSession ftSession = org.hibernate.search.Search.createFullTextSession((Session) em.getDelegate());
    ftSession.purgeAll(Product.class);
    em.getTransaction().commit();
    em.close();
}

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From source file:com.impetus.client.couchdb.crud.CouchDBClientTest.java

@Test
public void testPersistJoinTableData() throws ClientProtocolException, URISyntaxException, IOException {
    final String schemaName = "couchdatabase";
    final String tableName = "couchjointable";
    final String joinColumn = "joinColumnName";
    final String inverseJoinColumn = "inverseJoinColumnName";

    CouchDBTestUtils.createViews(new String[] { joinColumn, inverseJoinColumn }, tableName, httpHost,
            schemaName, httpClient);//from  w w w  . jav a2 s . c om
    JoinTableData joinTableData = new JoinTableData(OPERATION.INSERT, schemaName, tableName, joinColumn,
            inverseJoinColumn, null);

    String joinKey = "4";

    Integer inverseJoinKey1 = new Integer(10);
    // inverseJoinKey2 was Double earlier, changed to Integer
    //CouchDB has an issue with handling fixed precision numbers
    //So the test case was failing
    Integer inverseJoinKey2 = new Integer(12);
    Set inverseJoinKeys = new HashSet();
    inverseJoinKeys.add(inverseJoinKey1);
    inverseJoinKeys.add(inverseJoinKey2);

    joinTableData.addJoinTableRecord(joinKey, inverseJoinKeys);

    EntityManager em = emf.createEntityManager();
    Map<String, Client> clients = (Map<String, Client>) em.getDelegate();
    CouchDBClient client = (CouchDBClient) clients.get(_PU);
    client.persistJoinTable(joinTableData);

    List<String> columns = client.getColumnsById(schemaName, tableName, joinColumn, inverseJoinColumn, joinKey,
            String.class);

    Assert.assertNotNull(columns);
    Assert.assertEquals(true, !columns.isEmpty());
    Assert.assertEquals(2, columns.size());
    Assert.assertEquals(true, columns.contains(inverseJoinKey1.toString()));
    Assert.assertEquals(true, columns.contains(inverseJoinKey2.toString()));

    client.deleteByColumn(schemaName, tableName, inverseJoinColumn, inverseJoinKey1);
    client.deleteByColumn(schemaName, tableName, inverseJoinColumn, inverseJoinKey2);

    columns = client.getColumnsById(schemaName, tableName, joinColumn, inverseJoinColumn, joinKey,
            String.class);

    Assert.assertTrue(columns.isEmpty());
}

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From source file:org.hibernate.search.demo.SearchDemo.java

private void index() {
    EntityManager em = emf.createEntityManager();
    em.getTransaction().begin();//w w  w  . j a v  a2s.c  o  m
    FullTextSession ftSession = org.hibernate.search.Search.createFullTextSession((Session) em.getDelegate());
    List results = ftSession.createCriteria(Product.class).list();
    for (Object obj : results) {
        ftSession.index(obj);
    }
    em.getTransaction().commit();
    em.close();

}

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From source file:com.webbfontaine.valuewebb.timer.RatesUpdater.java

@Asynchronous
@Transactional//from  w  w w .  j a v  a 2  s .  c  o  m
public QuartzTriggerHandle scheduleTask(@Expiration Date when, @IntervalCron String interval) {

    HashMap<String, BigDecimal> ratesFromBank = ratesFromBank();
    if (ratesFromBank.isEmpty()) {
        LOGGER.error("No rates passed to update, check web site and source code!");
        return null;
    }

    EntityManager entityManager = Utils.getEntityManager();

    List<Rate> existingRates = entityManager.createQuery("from Rate r where r.eov is null").getResultList();

    Transaction tx = ((org.jboss.seam.persistence.HibernateSessionProxy) entityManager.getDelegate())
            .getTransaction();

    try {

        tx.begin();

        for (Rate existingRecord : existingRates) {

            BigDecimal latestRateForCurrency = ratesFromBank.get(existingRecord.getCod());

            if (latestRateForCurrency == null) {
                LOGGER.warn("Currency code '{0}' exists but absent in updates", existingRecord.getCod());
                continue;
            }

            if (existingRecord.getExch().doubleValue() != latestRateForCurrency.doubleValue()) { //i get double value because bigdecimal can return 0.2240 which is not equal to 0.224 when comparing BD values
                /* close existing rate and open new one from today */
                Date tomorrowDate = Utils.getTomorrowDate();
                existingRecord.setEov(tomorrowDate); // since scheduler works at 21:00
                Rate newRecord = new Rate(null, existingRecord.getCod(), 1, latestRateForCurrency, tomorrowDate,
                        null);
                entityManager.persist(existingRecord);
                entityManager.persist(newRecord);
                LOGGER.info("Updated Exchange rate for {0}, old: {1}, new: {2}", newRecord.getCod(),
                        existingRecord.unitRate(), newRecord.unitRate());
            }
        }

        entityManager.flush();
        tx.commit();

    } catch (Exception e) {
        LOGGER.error("Exception on updating rates", e);
        if (tx != null) {
            tx.rollback();
        }
    }

    return null;
}

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From source file:it.attocchi.jpa2.JpaController.java

public <T extends Serializable> List<T> findByExample(Class<T> clazz, T anExample) throws Exception {
    List<T> res = new ArrayList<T>();

    testClazz(clazz);//from   w  ww  .ja  va 2  s .c  o m

    EntityManager em = getEntityManager();
    Session session = null;

    try {
        session = (Session) em.getDelegate();
        res = session.createCriteria(clazz).add(Example.create(anExample).excludeZeroes().enableLike()).list();
    } catch (Exception e) {
        throw e;
    } finally {
        // Close the database connection:
        if (!globalTransactionOpen) {
            // if (em.getTransaction().isActive())
            // em.getTransaction().rollback();
            closeEm(); // em.close();
        }
    }

    return res;
}

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From source file:it.webappcommon.lib.jpa.ControllerStandard.java

public <T extends Serializable> List<T> findByExample(Class<T> clazz, T anExample) throws Exception {
    List<T> res = new ArrayList<T>();

    EntityManager em = getEntityManagerFactory().createEntityManager();
    Session session = null;/*w w  w  .j a v a 2 s.co  m*/
    Criteria cri = null;

    try {

        session = (Session) em.getDelegate();

        res = session.createCriteria(clazz).add(Example.create(anExample).excludeZeroes().enableLike()).list();

        // res = em.createQuery("SELECT e FROM " + clazz.getCanonicalName()
        // + " e", clazz).getResultList();

    } catch (Exception e) {
        throw e;
    } finally {
        // Close the database connection:
        if (em.getTransaction().isActive())
            em.getTransaction().rollback();
        em.close();
    }

    return res;
}

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