Java Code Examples for javax.persistence.Persistence#createEntityManagerFactory()

/**<p>Executes the database migration for the provided JIRAs numbers.
 * For example, for the https://issues.apache.org/jira/browse/IMAP-165 JIRA, simply invoke
 * with IMAP165 as parameter.
 * You can also invoke with many JIRA at once. They will be all serially executed.</p>
 * 
 * TODO Extract the SQL in JAVA classes to XML file.
 * 
 * @param jiras the JIRAs numbers
 * @throws JpaMigrateException 
 */
public static void main(String[] jiras) throws JpaMigrateException {

    try {
        EntityManagerFactory factory = Persistence.createEntityManagerFactory("JamesMigrator");
        EntityManager em = factory.createEntityManager();

        for (String jira: jiras) {
            JpaMigrateCommand jiraJpaMigratable = (JpaMigrateCommand) Class.forName(JPA_MIGRATION_COMMAND_PACKAGE + "." + jira.toUpperCase(Locale.US) + JpaMigrateCommand.class.getSimpleName()).newInstance();
            LOGGER.info("Now executing {} migration", jira);
            em.getTransaction().begin();
            jiraJpaMigratable.migrate(em);
            em.getTransaction().commit();
            LOGGER.info("{} migration is successfully achieved", jira);
        }
    } catch (Throwable t) {
        throw new JpaMigrateException(t);
    }
    
}
 

@Override
public void load(ConfigNode node) throws ConfigException {
    File dbFileName = new File(Config.getInstance().getConfDir() + File.separator + Constants.CONFIG_DATABASE_DIRNAME + File.separator + Constants.CONFIG_DATABASE_FILENAME);

    // Override database location with [confdir]/db/stacksync
    properties.setProperty(PersistenceUnitProperties.JDBC_URL,
            String.format(Constants.CONFIG_DATABASE_URL_FORMAT, dbFileName.getAbsolutePath()));
    
    properties.setProperty(PersistenceUnitProperties.JDBC_DRIVER,
            String.format(Constants.CONFIG_DATABASE_DRIVER, dbFileName.getAbsolutePath()));

    // Adjust generation strategy
    // - if DB folder exists, we assume the tables have been created
    // - if not, we need to create them
    if (!dbFileName.exists()) {
        properties.setProperty(PersistenceUnitProperties.DDL_GENERATION, PersistenceUnitProperties.CREATE_ONLY);
    } else {
        properties.setProperty(PersistenceUnitProperties.DDL_GENERATION, PersistenceUnitProperties.NONE);
    }

    // Override other values (if defined in config!)
    if (node != null) {
        for (ConfigNode property : node.findChildrenByXpath("property")) {
            properties.setProperty(property.getAttribute("name"), property.getAttribute("value"));
        }
    }

    //check directory
    File serviceProperties = new File(dbFileName.getAbsolutePath() + File.separator + "service.properties");
    if (!serviceProperties.exists()) {
        File databaseFolder = new File(Config.getInstance().getConfDir() + File.separator + Constants.CONFIG_DATABASE_DIRNAME);

        FileUtil.deleteRecursively(databaseFolder);
        databaseFolder.mkdirs();
    }
    
    // Load!
    entityManagerFactory = Persistence.createEntityManagerFactory(Constants.CONFIG_DATABASE_PERSISTENCE_UNIT, properties);
}
 

@BeforeEach
public void init() {
    emFactory = Persistence.createEntityManagerFactory("DB");
    em = emFactory.createEntityManager();

    valFactory = Validation.buildDefaultValidatorFactory();
    validator = valFactory.getValidator();
}
 

protected PresenterFactory obtainPresenterFactory(String contextPath) {
	if (presenterFactory == null) {
		ContractApplicationService contractApplicationService;
		EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("ContractApplicationExample");
		ContractApplicationDao contractApplicationDao = new ContractApplicationDaoPlain(entityManagerFactory);
		contractApplicationService = new ContractApplicationServicePlain(entityManagerFactory, contractApplicationDao);
		presenterFactory = new PresenterFactoryEx(new HashMap<String, Object>(), new VaadinViewFactoryEx(), contractApplicationService);
	}
	return presenterFactory;
}
 

@Test
public void testCreateEntityManager() {
	final EntityManagerFactory emf = Persistence.createEntityManagerFactory("test-jse");
	emf.createEntityManager();
	JpaWrapper.getJpaCounter().setDisplayed(false);
	emf.createEntityManager();
	JpaWrapper.getJpaCounter().setDisplayed(true);
}
 

@SuppressWarnings("unchecked")
public void migrate2() {
	EntityManagerFactory sourceFactory = Persistence.createEntityManagerFactory("migration");
	Map<String, String> properties = new HashMap<String, String>();
	properties.put(PersistenceUnitProperties.JDBC_PASSWORD, Site.DATABASEPASSWORD);
	properties.put(PersistenceUnitProperties.DDL_GENERATION, PersistenceUnitProperties.DROP_AND_CREATE);
	properties.put(PersistenceUnitProperties.LOGGING_LEVEL, "fine");
	EntityManagerFactory targetFactory = Persistence.createEntityManagerFactory("botlibre", properties);
	EntityManager source = sourceFactory.createEntityManager();
	EntityManager target = targetFactory.createEntityManager();
	target.getTransaction().begin();
	try {
		Domain domain = new Domain(Site.DOMAIN);
		target.persist(domain);
		
		List<Tag> tags = source.createQuery("Select t from Tag t").getResultList();
		for (Tag tag : tags) {
			tag.setDomain(domain);
			target.persist(tag);
		}
		
		List<User> users = source.createQuery("Select t from User t").getResultList();
		for (User user : users) {
			if (user.getCreationDate() == null) {
				user.setCreationDate(new Date());
			}
			target.persist(user);
		}
		
		List<AvatarImage> avatars = source.createQuery("Select t from AvatarImage t").getResultList();
		for (AvatarImage avatar : avatars) {
			avatar.setDomain(domain);
			target.persist(avatar);
		}
		
		List<BotInstance> instances = source.createQuery("Select p from BotInstance p").getResultList();
		for (BotInstance instance : instances) {
			if (instance.getCreationDate() == null) {
				instance.setCreationDate(new Date());
			}
			instance.setDomain(domain);
			target.persist(instance);
		}
		
		target.getTransaction().commit();
		target.getTransaction().begin();
		Query query = target.createNativeQuery("Update Tag t set count = (Select count(p) from BotInstance p join PANODRAINSTANCE_TAGS pt on (pt.BotInstance_id = p.id) join Tag t2 on (pt.tags_id = t2.id) where p.domain_id = ? and t2.id = t.id) where t.domain_id = ?");
		query.setParameter(1, domain.getId());
		query.setParameter(2, domain.getId());
		query.executeUpdate();
		query = target.createQuery("Delete from Tag t where t.count = 0 and t.domain = :domain");
		query.setParameter("domain", domain);
		query.executeUpdate();
		target.getTransaction().commit();
		
	} catch (Exception exception) {
		exception.printStackTrace();
	} finally {
		if (target.getTransaction().isActive()) {
			target.getTransaction().rollback();
		}
		source.close();
		target.close();
		sourceFactory.close();
		targetFactory.close();
	}
}
 

@BeforeEach
public void init() {
    factory = Persistence.createEntityManagerFactory("DB");
    em = factory.createEntityManager();
}
 

@BeforeClass
public static void setup() {
    factory = Persistence.createEntityManagerFactory("test1");
}
 

@BeforeClass
public static void setup() {
    factory = Persistence.createEntityManagerFactory("test1");
}
 

@BeforeClass
public static void setup() throws Exception {
    entityManagerFactory = Persistence.createEntityManagerFactory("TestPU");
}
 

@Before
public void init() {
	emf = Persistence.createEntityManagerFactory("my-persistence-unit");
}
 

@Before
public void init() {
	emf = Persistence.createEntityManagerFactory("my-persistence-unit");
}
 

@Before
public void init() {
	emf = Persistence.createEntityManagerFactory("my-persistence-unit");
}
 

@BeforeClass
public static void setup() {
    factory = Persistence.createEntityManagerFactory("test1");
}
 

@Before
public void init() {
	emf = Persistence.createEntityManagerFactory("my-persistence-unit");
}
 

@Before
public void init() {
	emf = Persistence.createEntityManagerFactory("my-persistence-unit");
}
 

@Before
public void init() {
	emf = Persistence.createEntityManagerFactory("my-persistence-unit");
}
 

public void doGet(HttpServletRequest req, HttpServletResponse res)
    throws IOException {
  res.setContentType("text/plain");

  Map<String, String> properties = new HashMap();
  if (SystemProperty.environment.value() ==
        SystemProperty.Environment.Value.Production) {
    properties.put("javax.persistence.jdbc.driver",
        "com.mysql.jdbc.GoogleDriver");
    properties.put("javax.persistence.jdbc.url",
        System.getProperty("cloudsql.url"));
  } else {
    properties.put("javax.persistence.jdbc.driver",
        "com.mysql.jdbc.Driver");
    properties.put("javax.persistence.jdbc.url",
        System.getProperty("cloudsql.url.dev"));
  }

  EntityManagerFactory emf = Persistence.createEntityManagerFactory(
      "Demo", properties);

  // Insert a few rows.
  EntityManager em = emf.createEntityManager();
  em.getTransaction().begin();
  em.persist(new Greeting("user", new Date(), "Hello!"));
  em.persist(new Greeting("user", new Date(), "Hi!"));
  em.getTransaction().commit();
  em.close();

  // List all the rows.
  em = emf.createEntityManager();
  em.getTransaction().begin();
  List<Greeting> result = em
      .createQuery("FROM Greeting", Greeting.class)
      .getResultList();
  for (Greeting g : result) {
    res.getWriter().println(
        g.getId() + " " +
        g.getAuthor() + "(" + g.getDate() + "): " +
        g.getContent());
  }
  em.getTransaction().commit();
  em.close();

}
 

@BeforeClass
public static void setup() {
    factory = Persistence.createEntityManagerFactory("test1");
}
 

@Before
public void init() {
	emf = Persistence.createEntityManagerFactory("my-persistence-unit");
}