Example usage for javax.persistence EntityManagerFactory createEntityManager

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:ejb.bean.UsuarioDAOJPAImplBean.java

/**Mtodo para realizar a busca de usurio pelo ID.
 * @author Richel Sensineli/*ww w .j a va 2  s . com*/
 * @param id int - ID do usurio
 * @return Usuario usuario - Objeto Usuario
 */
@Override
public Usuario buscaUsuarioPorId(final int id) throws UsuarioNaoEncontradoException {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory("UsuarioPU");
    EntityManager em = emf.createEntityManager();
    Usuario u = em.find(UsuarioImpl.class, id);
    if (u == null) {
        throw new UsuarioNaoEncontradoException("usuario no encontrado");
    }
    em.clear();
    em.close();
    emf.close();
    return u;
}

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From source file:edu.harvard.i2b2.fhirserver.ejb.AuthTokenBean.java

@PostConstruct
public void init() {
    try {/*from  w w w . j  av a  2  s .  co m*/
        EntityManagerFactory factory = Persistence.createEntityManagerFactory("testPer");
        em = factory.createEntityManager();
        Random r = new Random();
        String rs = Integer.toString(r.nextInt());
        createAuthToken(rs, rs, rs, rs, rs, rs, rs, rs);
        logger.info("total:" + totalCount());
        // createAuthToken("clientId232" + r.nextInt());
    } catch (Exception ex) {
        logger.error("", ex);
    }
}

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From source file:ejb.bean.UsuarioDAOJPAImplBean.java

/**Mtodo para a remoo de usurio.
 * @author Richel Sensineli/*w  ww . j a  va 2s.  co m*/
 * @param id int - ID do usurio
 * @throws UsuarioNaoEncontradoException - usurio no encontrado
 */
@Override
public void removeUsuario(final int id) throws UsuarioNaoEncontradoException {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory("UsuarioPU");
    EntityManager em = emf.createEntityManager();

    Usuario u = em.find(UsuarioImpl.class, id);

    em.getTransaction().begin();
    if (u == null) {
        throw new UsuarioNaoEncontradoException("usuario no encontrado");
    } else {
        em.remove(u);
        em.getTransaction().commit();
    }
    em.clear();
    em.close();
    emf.close();

}

---

From source file:com.nokia.helium.metadata.tests.TestORMFMPPLoader.java

/**
 * Populates the LogFile table with basic data.
 * @throws MetadataException/*from w w  w . ja  va  2  s .  co  m*/
 * @throws IOException
 */
@Before
public void populateDatabase() throws MetadataException, IOException {
    File tempdir = new File(System.getProperty("test.temp.dir"));
    tempdir.mkdirs();
    database = new File(tempdir, "test_db");
    if (database.exists()) {
        FileUtils.forceDelete(database);
    }
    EntityManagerFactory factory = FactoryManager.getFactoryManager().getEntityManagerFactory(database);
    EntityManager em = factory.createEntityManager();
    try {
        em.getTransaction().begin();
        for (int i = 0; i < 2000; i++) {
            LogFile lf = new LogFile();
            lf.setPath("log" + String.format("%04d", i));
            em.persist(lf);
        }
    } finally {
        if (em.getTransaction().isActive()) {
            em.getTransaction().commit();
        }
        em.close();
        factory.close();
    }
}

---

From source file:ejb.bean.UsuarioDAOJPAImplBean.java

/**Mtodo para a atualizao do usurio
 * @author Richel Sensineli//w w w  .j  av a 2s.c  o m
 * @param id int - ID do usurio
 * @param nome String - Nome do usurio
 * @param sobrenome String - Nome do usurio
 */
@Override
public void updateUsuario(final int id, final String nome, final String sobrenome)
        throws UsuarioNaoEncontradoException {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory("UsuarioPU");
    EntityManager em = emf.createEntityManager();

    UsuarioImpl user = em.find(UsuarioImpl.class, id);
    user.setNome(nome);
    user.setSobrenome(sobrenome);

    em.getTransaction().begin();
    try {
        em.merge(user);
        em.getTransaction().commit();
    } catch (Exception e) {
        e.printStackTrace();
        em.getTransaction().rollback();
    }

    em.clear();
    em.close();
    emf.close();
}

---

From source file:ejb.bean.UsuarioDAOJPAImplBean.java

/**Mtodo para a criao de usurio
 * @author Richel Sensineli\//from   www.j a va2s .co m
 * @param nome String - Nome do usurio
 * @param sobrenome String - Nome do usurio
 * @return Usuario usuario - Objeto Usurio
 */
@Override
public Usuario criaUsuario(final String nome, final String sobrenome) {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory("UsuarioPU");
    EntityManager em = emf.createEntityManager();

    UsuarioImpl user = new UsuarioImpl();
    user.setNome(nome);
    user.setSobrenome(sobrenome);

    em.getTransaction().begin();
    try {
        em.persist(user);
        em.getTransaction().commit();
    } catch (Exception e) {
        e.printStackTrace();
        em.getTransaction().rollback();
    }

    em.clear();
    em.close();
    emf.close();

    return user;
}

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From source file:com.edugility.substantia.substance.TestCasePerson.java

@Test
public void testingJPA() throws Exception {
    final EntityManagerFactory emf = Persistence.createEntityManagerFactory("test");
    assertNotNull(emf);/*from   w w  w  .  ja  v  a  2 s  .  com*/

    final EntityManager em = emf.createEntityManager();
    assertNotNull(em);

    final EntityTransaction et = em.getTransaction();
    assertNotNull(et);
    et.begin();

    final Person p = new Person();
    em.persist(p);
    em.flush();
    assertFalse(p.isTransient());
    assertTrue(p.isVersioned());
    assertEquals(Long.valueOf(1L), p.getId());
    assertEquals(Integer.valueOf(1), p.getVersion());

    et.commit();
    et.begin();

    final Person p2 = em.find(Person.class, 1L, LockModeType.OPTIMISTIC_FORCE_INCREMENT);
    assertNotNull(p2);
    assertFalse(p2.isTransient());
    assertTrue(p2.isVersioned());
    assertEquals(Long.valueOf(1L), p2.getId());
    assertEquals(Integer.valueOf(1), p2.getVersion());

    et.commit();
    et.begin();

    final Person p3 = em.getReference(Person.class, 1L);
    assertNotNull(p3);
    assertFalse(p3.isTransient());
    assertTrue(p3.isVersioned());
    assertEquals(Long.valueOf(1L), p3.getId());
    assertEquals(Integer.valueOf(2), p3.getVersion());

    et.commit();
    et.begin();

    assertTrue(em.contains(p));
    em.remove(p);

    et.commit();

    em.close();

    emf.close();
}

---

From source file:facades.PersonFacadeDB.java

@Override
public Person delete(Integer id) throws NotFoundException {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory(persistenceFileName);
    EntityManager em = emf.createEntityManager();
    EntityTransaction transaction = em.getTransaction();
    transaction.begin();// w w  w  .j ava 2 s .  com

    Person p = em.find(Person.class, id);

    if (p == null) {
        transaction.rollback();
        throw new NotFoundException("No person for the given id");
    } else {
        em.remove(p);
        transaction.commit();
    }

    return p;
}

---

From source file:facades.PersonFacadeDB.java

@Override
public Person addPerson(String json) {
    //make person from Json
    Person p = gson.fromJson(json, Person.class);

    EntityManagerFactory emf = Persistence.createEntityManagerFactory(persistenceFileName);
    EntityManager em = emf.createEntityManager();
    EntityTransaction transaction = em.getTransaction();
    transaction.begin();/*from w w w . ja v a 2 s .  com*/

    try {
        em.persist(p);
        transaction.commit();
    } catch (Exception e) {
        transaction.rollback();
    } finally {
        em.close();
    }
    return p;
}

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From source file:net.officefloor.tutorial.transactionhttpserver.TransactionHttpServerTest.java

/**
 * Ensure the JPA connects to database./*from  w ww.  ja  v a  2 s  .c  o m*/
 */
public void testJpa() throws Exception {

    // Request page to allow time for database setup
    this.doRequest("http://localhost:7878/users.woof");

    // Obtain entity manager
    EntityManagerFactory factory = Persistence.createEntityManagerFactory("example");
    EntityManager manager = factory.createEntityManager();

    // Ensure can obtain user and person
    Query query = manager.createQuery("SELECT U FROM User U");
    User user = (User) query.getSingleResult();
    assertEquals("Incorrect user name", "daniel", user.getUserName());
    Person person = user.getPerson();
    assertEquals("Incorrect person name", "Daniel Sagenschneider", person.getFullName());

    // Ensure persist user and person
    User newUser = new User();
    newUser.setUserName("test");
    Person newPerson = new Person();
    newPerson.setFullName("TEST");
    newPerson.setUser(newUser);
    manager.persist(newPerson);
    manager.close();

    // Ensure user and person persisted
    manager = factory.createEntityManager();
    User retrievedUser = manager.find(User.class, newUser.getId());
    assertEquals("Incorrect retrieved user name", "test", retrievedUser.getUserName());
    Person retrievedPerson = retrievedUser.getPerson();
    assertEquals("Incorrect retrieved full name", "TEST", retrievedPerson.getFullName());

    // Close persistence
    factory.close();
}

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