Example usage for javax.persistence EntityManager merge

List of usage examples for javax.persistence EntityManager merge

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Introduction

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

Prototype

public <T> T merge(T entity);

Source Link

Document

Merge the state of the given entity into the current persistence context.

Usage

From source file:org.eclipse.smila.binarystorage.persistence.jpa.JPABinaryPersistence.java

/**
 * Stores the given BinaryStorageDao, updating an existing one or creating a new one.
 *
 * @param dao/*from   w w  w  .java  2s . co m*/
 *          the BinaryStorageDao to store
 * @throws BinaryStorageException
 *           if any error occurs
 */
// TODO: don't know if this synchronize is good, was needed to pass the JUNit test TestConcurrentBSSAccessJPA
private synchronized void store(final BinaryStorageDao dao) throws BinaryStorageException {
    _lock.readLock().lock();
    try {
        final EntityManager em = createEntityManager();
        final EntityTransaction transaction = em.getTransaction();
        try {
            transaction.begin();
            if (findBinaryStorageDao(em, dao.getId()) == null) {
                em.persist(dao);
            } else {
                em.merge(dao);
            }
            transaction.commit();
            if (_log.isTraceEnabled()) {
                _log.trace("stored content of id:" + dao.getId());
            }
        } catch (final Exception e) {
            if (transaction.isActive()) {
                transaction.rollback();
            }
            throw new BinaryStorageException(e, "error storing record id: " + dao.getId());
        } finally {
            closeEntityManager(em);
        }
    } finally {
        _lock.readLock().unlock();
    }
}

From source file:org.nuxeo.theme.webwidgets.providers.PersistentProvider.java

public synchronized void reorderWidgets(final List<Widget> widgets) throws ProviderException {
    try {//from  w w  w.j  a  v a2 s. com
        getPersistenceProvider().run(true, new RunVoid() {
            public void runWith(EntityManager em) {
                int i = 0;
                for (Widget w : widgets) {
                    WidgetEntity widget = ((WidgetEntity) w);
                    int order = widget.getOrder();
                    if (order != i) {
                        ((WidgetEntity) w).setOrder(i);
                        em.merge(w);
                    }
                    i = i + 1;
                }
            }
        });
    } catch (ClientException e) {
        throw new ProviderException(e);
    }
}

From source file:com.busimu.core.dao.impl.UserMngDaoPolicyJpaImpl.java

/**
 * {@inheritDoc}/*from   www  . jav  a 2 s . c  o  m*/
 */
@Override
public User activateUser(User user, String licenseCode) {
    EntityManager em = ((EntityManagerHolder) TransactionSynchronizationManager.getResource(emf))
            .getEntityManager();
    EntityTransaction tx = em.getTransaction();
    License l = getLicenseByCode(em, licenseCode);
    if (l != null) {
        if (!tx.isActive()) {
            tx.begin();
        }
        user.setType(User.Type.valueOf(l.getType().name()));
        user.setStatus(User.Status.ACTIVE);
        user = em.merge(user);
        em.remove(l);
        tx.commit();
    }
    return user;
}

From source file:fr.mby.opa.picsimpl.dao.DbAlbumDao.java

@Override
public Album updateAlbum(final Album album) throws AlbumNotFoundException {
    Assert.notNull(album, "No Album supplied !");
    Assert.notNull(album.getId(), "Id should be set for update !");

    final TxCallbackReturn<Album> txCallback = new TxCallbackReturn<Album>(this.getEmf()) {

        @Override//from   w w  w .j  a  v  a 2  s  .c  o  m
        protected Album executeInTransaction(final EntityManager em) {
            final Album managedAlbum = em.find(Album.class, album.getId(), LockModeType.WRITE);
            if (managedAlbum == null) {
                throw new AlbumNotFoundException();
            }

            Album updatedAlbum = null;

            if (!managedAlbum.getLocked()) {
                // Update album if not locked !
                managedAlbum.setName(album.getName());
                managedAlbum.setDescription(album.getDescription());

                updatedAlbum = em.merge(managedAlbum);
            }

            return updatedAlbum;
        }
    };

    return txCallback.getReturnedValue();
}

From source file:in.bookmylab.jpa.JpaDAO.java

public User saveUser(User user, boolean savePassword) {
    EntityManager em = emf.createEntityManager();
    try {/*from   w  ww.j  a va  2  s  .c om*/
        user.password = Utils.hashPassword(user.password);
        em.getTransaction().begin();
        if (user.userId == null) {
            grantDefaultRoleToUser(em, user);
            em.persist(user);
        } else {
            user = em.merge(user);
            if (savePassword) {
                Query q = em.createNamedQuery("User.setPassword");
                q.setParameter("password", user.password);
                q.setParameter("userId", user.userId);
                q.executeUpdate();
            }
        }
        em.getTransaction().commit();
    } finally {
        em.clear();
        em.close();
    }
    return user;
}

From source file:org.nuxeo.ecm.activity.ActivityStreamServiceImpl.java

protected void updateActivity(final Activity activity) {
    try {//from  ww  w.ja  va2  s . co  m
        getOrCreatePersistenceProvider().run(false, new PersistenceProvider.RunCallback<Activity>() {
            @Override
            public Activity runWith(EntityManager em) {
                activity.setLastUpdatedDate(new Date());
                return em.merge(activity);
            }
        });
    } catch (ClientException e) {
        throw new ClientRuntimeException(e);
    }
}

From source file:org.eclipse.smila.recordstorage.impl.RecordStorageImpl.java

/**
 * {@inheritDoc}/*from   w  ww  .j av a 2 s.co  m*/
 */
@Override
public void storeRecord(final Record record) throws RecordStorageException {
    if (record == null) {
        throw new RecordStorageException("parameter record is null");
    }
    _lock.readLock().lock();
    try {
        final EntityManager em = createEntityManager();
        final EntityTransaction transaction = em.getTransaction();
        try {
            final RecordDao dao = new RecordDao(record);
            transaction.begin();
            if (findRecordDao(em, record.getId()) == null) {
                em.persist(dao);
            } else {
                em.merge(dao);
            }
            transaction.commit();
            if (_log.isTraceEnabled()) {
                _log.trace("stored record Id:" + record.getId());
            }
        } catch (final Exception e) {
            if (transaction.isActive()) {
                transaction.rollback();
            }
            throw new RecordStorageException(e, "error storing record id: " + record.getId());
        } finally {
            closeEntityManager(em);
        }
    } finally {
        _lock.readLock().unlock();
    }
}

From source file:org.sigmah.server.endpoint.gwtrpc.PasswordManagementServlet.java

@Override
@Transactional//from w  w  w .j av a2  s .c  o  m
public void forgotPassword(String email, String language, String hostUrl) throws Exception {

    final EntityManager entityManager = injector.getInstance(EntityManager.class);

    // find user
    final Query query = entityManager.createQuery("SELECT u FROM User u WHERE u.email = :email");
    query.setParameter("email", email);
    final User user = (User) query.getSingleResult();

    // unique key is stored and sent by email
    String uniqueKey = UUID.randomUUID().toString();
    uniqueKey = uniqueKey.replaceAll("-", ""); //squeeze

    // store key and date 
    user.setChangePasswordKey(uniqueKey);
    user.setDateChangePasswordKeyIssued(new Date());
    entityManager.merge(user);

    // build a link to pass by email, so the user can reset the password following the link
    final StringBuilder linkBuilder = new StringBuilder(hostUrl);
    linkBuilder.append("?token=" + URLEncoder.encode(uniqueKey, "UTF-8"));
    linkBuilder.append("&locale=" + language);
    linkBuilder.append("#passwordReset");

    // send email
    final SimpleEmail mail = new SimpleEmail();

    final Locale locale = getLocale(language);
    final ResourceBundle bundle = ResourceBundle.getBundle("org.sigmah.server.mail.MailMessages", locale);

    mail.setSubject(bundle.getString("resetPassword.subject"));
    mail.setMsg(MessageFormat.format(bundle.getString("resetPassword.content"), linkBuilder.toString()));

    mail.addTo(email, User.getUserCompleteName(user));

    final MailSender mailSender = injector.getInstance(MailSender.class);
    mailSender.send(mail);
    log.info(String.format("Password reset email has been sent to '%s' with a link [%s]", email,
            linkBuilder.toString()));
}

From source file:edu.vt.middleware.gator.JpaConfigManager.java

/** {@inheritDoc}. */
@Transactional(propagation = Propagation.REQUIRED)
public void savePermissions(final ProjectConfig project, final String sid, final int bits) {
    final EntityManager em = getEntityManager();
    if (logger.isDebugEnabled()) {
        logger.debug(String.format("Setting permissions for %s to %s on %s.", sid, bits, project));
    }// ww  w . j  a v a  2 s . c om

    final PermissionConfig perm = project.getPermission(sid);
    if (perm == null) {
        project.addPermission(new PermissionConfig(sid, bits));
    } else {
        perm.setPermissionBits(bits);
    }
    project.setModifiedDate(Calendar.getInstance());
    em.merge(project);
}