Example usage for javax.persistence EntityManagerFactory createEntityManager

List of usage examples for javax.persistence EntityManagerFactory createEntityManager

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Introduction

In this page you can find the example usage for javax.persistence EntityManagerFactory createEntityManager.

Prototype

public EntityManager createEntityManager();

Source Link

Document

Create a new application-managed EntityManager.

Usage

From source file:es.uvigo.ei.sing.rubioseq.gui.util.DBInitializer.java

public static EntityManager getRUbioSeqEntityMananger() {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory("rubioseq-database");
    EntityManager em = emf.createEntityManager();
    return em;/* ww  w  .j a  va2  s  .  c  om*/
}

From source file:org.isatools.isatab.commandline.PersistenceShellCommand.java

/**
 * TODO: this is a patch used until we are able to make the auto-indexing upon load feature working
 * It is called after persistence.// ww  w .java 2  s . co  m
 *
 * @param store               must contain the studies that have to be reindexed (with proper accession).
 * @param hibernateProperties - The hibernate properties indicating DB properties and Index location/Strategy,
 *                            and so forth.
 */
public static void reindexStudies(BIIObjectStore store, Properties hibernateProperties) {
    // Need to initialize this here, otherwise above config will fail
    log = Logger.getLogger(PersistenceShellCommand.class);

    hibernateProperties.setProperty("hibernate.search.indexing_strategy", "event");
    hibernateProperties.setProperty("hibernate.hbm2ddl.auto", "update");
    hibernateProperties.setProperty("hbm2ddl.drop", "false");

    EntityManagerFactory emf1 = Persistence.createEntityManagerFactory("BIIEntityManager", hibernateProperties);
    EntityManager entityManager1 = emf1.createEntityManager();

    StudyDAO studyDAO = DaoFactory.getInstance(entityManager1).getStudyDAO();
    FullTextEntityManager fullTxtEm = Search.getFullTextEntityManager(entityManager1);
    EntityTransaction tnx = entityManager1.getTransaction();

    tnx.begin();
    for (Study study : store.valuesOfType(Study.class)) {
        Study dbStudy = studyDAO.getByAcc(study.getAcc());
        if (dbStudy != null) {
            out.println("Indexing Study #" + dbStudy.getAcc());
            fullTxtEm.index(dbStudy);
            log.info("Indexing of Study # " + dbStudy.getAcc() + " is complete!");
        }

    }
    log.info("Commiting & closing Entity Manager.");
    tnx.commit();
    entityManager1.close();
}

From source file:org.rhq.server.metrics.migrator.DataSourceTest.java

public static void main2(String[] args) throws Exception {
    BasicConfigurator.configure();//from w w w  .  ja  va  2 s .c om
    Logger.getRootLogger().setLevel(Level.INFO);
    Logger.getLogger("org.rhq").setLevel(Level.DEBUG);
    EntityManagerFactory entityManagerFactory = null;
    EntityManager entityManager = null;
    ExistingDataBulkExportSource source = null;
    try {
        entityManagerFactory = createEntityManager();
        entityManager = entityManagerFactory.createEntityManager();
        source = new ExistingPostgresDataBulkExportSource(entityManager,
                "SELECT  schedule_id, time_stamp, value, minvalue, maxvalue FROM RHQ_MEASUREMENT_DATA_NUM_1D");
        StopWatch stopWatch = new StopWatch();
        stopWatch.start();
        source.initialize();
        int rowIndex = 0;
        int maxResults = 30000;
        for (;;) {
            List<Object[]> existingData = source.getData(rowIndex, maxResults);
            if (existingData.size() < maxResults) {
                break;
            } else {
                rowIndex += maxResults;
            }
        }
        stopWatch.stop();
        System.out.println("Execution: " + stopWatch);
    } finally {
        if (source != null) {
            source.close();
        }
        if (entityManager != null) {
            entityManager.close();
        }
        if (entityManagerFactory != null) {
            entityManagerFactory.close();
        }
    }
}

From source file:es.uvigo.ei.sing.rubioseq.gui.util.DBInitializer.java

/**
 * This method is responsible for the initializacion of the BD, that is:
 * - Creating the default RUbioSeqConfiguration.
 * - Creating the default users.// w w  w.j a v a 2  s. c o m
 * - Creating a datastore pointing to "/" for the admin user.
 * 
 * This method also plays a key role in the deployment of the application 
 * since it prints the message "[DBInitializer] DB initialized." which is
 * triggered by the launch-rubioseq-gui.sh in order to know that the app. is
 * deployed and launch a browser.
 * 
 * @author hlfernandez
 */
static void initDatabase() {
    System.out.println("[DBInitializer] Initializing DB ...");

    EntityManagerFactory emf = Persistence.createEntityManagerFactory("rubioseq-database");
    EntityManager em = emf.createEntityManager();
    EntityTransaction tx = null;
    try {
        /*
         * Store Global Configuration
         */
        if (em.createQuery("SELECT u FROM RUbioSeqConfiguration u").getResultList().size() == 0) {
            RUbioSeqConfiguration config = new RUbioSeqConfiguration();
            config.setRubioseqCommand("/opt/RUbioSeq3.7/RUbioSeq.pl");
            config.setPrivateDatastoresRootDirectory("/path/to/private/datastores/root");
            config.setCreatePrivateDatastoresOnUserRegistration(false);

            tx = em.getTransaction();
            try {
                tx.begin();
                em.persist(config);
                tx.commit();
            } finally {
                if (tx != null && tx.isActive()) {
                    tx.rollback();
                }
            }
        }
        /*
         * Create Default Users
         */
        if (em.createQuery("SELECT u FROM User u").getResultList().size() == 0) {
            User user = new User();
            user.setUsername("rubiosequser");
            user.setPassword(DigestUtils.md5Hex("rubioseqpass"));
            user.setAdmin(false);
            user.setEmail("rubiosequser@rubioseg.org");

            tx = em.getTransaction();
            try {
                tx.begin();
                em.persist(user);
                tx.commit();
            } finally {
                if (tx != null && tx.isActive()) {
                    tx.rollback();
                }
            }

            user = new User();
            user.setUsername("admin");
            user.setPassword(DigestUtils.md5Hex("admin"));
            user.setAdmin(true);
            user.setEmail("rubiosequser@rubioseg.org");

            tx = em.getTransaction();
            try {
                tx.begin();
                em.persist(user);
                tx.commit();
            } finally {
                if (tx != null && tx.isActive()) {
                    tx.rollback();
                }
            }
        }
        /*
         * Create Default Datastores
         */
        boolean createDefaultAdminDatastore = true;
        List<User> adminUsers = getAdminUsers(em);
        @SuppressWarnings("unchecked")
        List<DataStore> datastores = (List<DataStore>) em.createQuery("SELECT d FROM DataStore d")
                .getResultList();
        for (User adminUser : adminUsers) {
            if (datastores.size() == 0) {
                createDefaultAdminDatastore = true;
            } else {
                for (DataStore d : datastores) {
                    if (d.getUser() != null && d.getUser().equals(adminUser) && d.getPath().equals("/")) {
                        createDefaultAdminDatastore = false;
                    }
                }
            }
            if (createDefaultAdminDatastore) {
                DataStore adminDS = new DataStore();
                adminDS.setUser(adminUser);
                adminDS.setPath("/");
                adminDS.setMode(DataStoreMode.Private);
                adminDS.setType(DataStoreType.Input_Output);
                adminDS.setName(adminUser.getUsername() + "_default");

                tx = em.getTransaction();
                try {
                    tx.begin();
                    em.persist(adminDS);
                    tx.commit();
                } finally {
                    if (tx != null && tx.isActive()) {
                        tx.rollback();
                    }
                }
            }
        }
    } finally {
        em.close();
    }

    System.out.println("[DBInitializer] DB initialized.");
}

From source file:com.brienwheeler.lib.db.DbTestUtils.java

public static <T> T doInHibernateSession(ApplicationContext applicationContext, Callable<T> work) {
    EntityManagerFactory entityManagerFactory = applicationContext
            .getBean("com.brienwheeler.lib.db.appEntityManagerFactory", EntityManagerFactory.class);

    EntityManagerHolder entityManagerHolder = (EntityManagerHolder) TransactionSynchronizationManager
            .getResource(entityManagerFactory);

    boolean created = entityManagerHolder == null;
    if (created) {
        entityManagerHolder = new EntityManagerHolder(entityManagerFactory.createEntityManager());
        TransactionSynchronizationManager.bindResource(entityManagerFactory, entityManagerHolder);
    }/*from www. jav  a  2s. c o m*/

    try {
        return work.call();
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        if (created)
            TransactionSynchronizationManager.unbindResource(entityManagerFactory);
    }
}

From source file:org.kuali.rice.krad.data.jpa.JpaMetadataProviderTest.java

@BeforeClass
public static void setUpBeforeClass() throws Exception {
    metadataProvider = new EclipseLinkJpaMetadataProviderImpl();
    EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("krad-data-unit-test");
    metadataProvider.setEntityManager(entityManagerFactory.createEntityManager());
}

From source file:org.opencms.db.jpa.CmsSqlManager.java

/**
 * Create EntityManager instance for given unit name. If factory
 * for this unit is not already created it creates one.<p>
 * // w ww .j a v  a 2  s  . co  m
 * @param unitName - the unit name in the persistence.xml file
 * @return EntityManager instance for given unit name
 */
public static EntityManager createEntityManager(String unitName) {

    EntityManager em = null;
    EntityManagerFactory factory = getFactory(unitName);

    if (factory != null) {
        em = factory.createEntityManager();
    }
    return em;
}

From source file:com.redhat.rhtracking.config.JPAConfig.java

@Bean
public EntityManager entityManager(EntityManagerFactory entityManagerFactory) {
    return entityManagerFactory.createEntityManager();
}

From source file:org.cloudfoundry.reconfiguration.spring.AbstractJpaBasedCloudServiceBeanFactoryPostProcessorTest.java

protected final void assertConfiguration(EntityManagerFactory factory, String dialect) {
    EntityManager entityManager = factory.createEntityManager();

    Object session = getSession(entityManager);
    Object sessionFactory = getSessionFactory(session);
    Object actual = getDialect(sessionFactory);

    assertEquals(dialect, actual.toString());
}

From source file:dao.UsuarioDao.java

public List<Usuario> consultarTodosUsuarios() {
    EntityManagerFactory factory = Persistence.createEntityManagerFactory("LoginUsersPU");
    EntityManager em = factory.createEntityManager();

    em.getTransaction().begin();/*  w w w  .  ja  v  a  2 s  .c  o m*/
    Query q = em.createNamedQuery("Usuario.findAll");
    List<Usuario> todosUsuarios = q.getResultList();
    return todosUsuarios;
}