Example usage for javax.persistence EntityManager flush

Introduction

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

Prototype

public void flush();

Source Link

Document

Synchronize the persistence context to the underlying database.

Usage

From source file:org.jasig.portlet.blackboardvcportlet.dao.impl.UserSessionUrlDaoImpl.java

@Override
@Transactional/*from   w w  w. j  a  v a 2  s .  c o m*/
public void deleteOldSessionUrls(Session session, ConferenceUser user) {
    final EntityManager entityManager = this.getEntityManager();

    //fetch session
    SessionImpl sessionFromDb = sessionDao.getSession(session.getSessionId());
    //fetch user
    ConferenceUserImpl userFromDb = blackboardUserDao.getUser(user.getUserId());
    //assert they are valid
    Validate.notNull(sessionFromDb);
    Validate.notNull(userFromDb);

    final NaturalIdQuery<UserSessionUrlImpl> query = this.createNaturalIdQuery(UserSessionUrlImpl.class);
    query.using(UserSessionUrlImpl_.session, sessionFromDb);
    query.using(UserSessionUrlImpl_.user, userFromDb);

    UserSessionUrlImpl url = query.load();

    entityManager.remove(url);
    entityManager.flush();
}

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From source file:eu.forgestore.ws.impl.FStoreJpaController.java

public void deleteAllProducts() {
    EntityManager entityManager = entityManagerFactory.createEntityManager();

    EntityTransaction entityTransaction = entityManager.getTransaction();

    entityTransaction.begin();/*from  w w  w  .  j  a  v a  2 s  .  c om*/

    Query q = entityManager.createQuery("DELETE FROM Product ");
    q.executeUpdate();
    entityManager.flush();

    entityTransaction.commit();

}

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From source file:eu.forgestore.ws.impl.FStoreJpaController.java

public void deleteAllCategories() {
    EntityManager entityManager = entityManagerFactory.createEntityManager();

    EntityTransaction entityTransaction = entityManager.getTransaction();

    entityTransaction.begin();//from   w w  w  .  j a va2  s . co  m

    Query q = entityManager.createQuery("DELETE FROM Category");
    q.executeUpdate();
    entityManager.flush();

    entityTransaction.commit();

}

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From source file:eu.forgestore.ws.impl.FStoreJpaController.java

public void deleteAllUsers() {
    EntityManager entityManager = entityManagerFactory.createEntityManager();

    EntityTransaction entityTransaction = entityManager.getTransaction();

    entityTransaction.begin();//ww w .j ava  2s .c  om

    Query q = entityManager.createQuery("DELETE FROM FStoreUser ");
    q.executeUpdate();
    entityManager.flush();

    entityTransaction.commit();

}

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From source file:name.livitski.tools.persista.TransactionalWork.java

/**
 * Performs the {@link #code database operations} provided by
 * the subclass in JPA transactional brackets. If there is currently
 * no active transaction at the entity manager, a new transaction
 * is started./*from w  ww.  j  a va 2 s. c  om*/
 * If the code finishes normally and does not request the rollback,
 * the transaction is committed if it was started by this method
 * (local transaction).
 * If the implementor's code throws an exception or requests the
 * rollback, the local transaction is rolled back and any ongoing
 * transaction is marked
 * {@link EntityTransaction#setRollbackOnly() rollback-only}.
 * @param db the entity manager the operation will be performed with
 * @return <code>true</code> if the transaction has or may still
 * be committed
 * @throws AbstractStorageException indicates an error during
 * the operation
 * @throws RuntimeException any unchecked implementor's exceptions
 * will be rethrown
 * @see EntityManager#getTransaction()
 */
public boolean exec(final EntityManager db) throws AbstractStorageException {
    final EntityTransaction transaction = db.getTransaction();
    boolean commit = false;
    Exception status = null;
    boolean localTransaction;
    if (transaction.isActive())
        localTransaction = false;
    else {
        transaction.begin();
        localTransaction = true;
    }
    try {
        commit = code(db);
        return commit;
    } catch (AbstractStorageException fault) {
        status = fault;
        throw fault;
    } catch (RuntimeException fault) {
        status = fault;
        throw fault;
    } finally {
        if (!localTransaction) {
            if (commit)
                db.flush();
            else
                transaction.setRollbackOnly();
        } else if (!commit || transaction.getRollbackOnly()) {
            try {
                transaction.rollback();
            } catch (RuntimeException fault) {
                if (null != status)
                    log().error("Transaction rollback failed", fault);
                else
                    throw fault;
            }
        } else // commit local transaction
        {
            try {
                transaction.commit();
            } catch (RuntimeException fault) {
                throw fault;
            }
        }
    }
}

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From source file:org.jasig.portal.events.aggr.PortalRawEventsAggregatorImpl.java

private EventProcessingResult doAggregateRawEventsInternal() {
    if (!this.clusterLockService.isLockOwner(AGGREGATION_LOCK_NAME)) {
        throw new IllegalStateException("The cluster lock " + AGGREGATION_LOCK_NAME
                + " must be owned by the current thread and server");
    }//  w  w w .j  ava2s  .c o  m

    if (!this.portalEventDimensionPopulator.isCheckedDimensions()) {
        //First time aggregation has happened, run populateDimensions to ensure enough dimension data exists
        final boolean populatedDimensions = this.portalEventAggregationManager.populateDimensions();
        if (!populatedDimensions) {
            this.logger.warn(
                    "Aborting raw event aggregation, populateDimensions returned false so the state of date/time dimensions is unknown");
            return null;
        }
    }

    //Flush any dimension creation before aggregation
    final EntityManager entityManager = this.getEntityManager();
    entityManager.flush();
    entityManager.setFlushMode(FlushModeType.COMMIT);

    final IEventAggregatorStatus eventAggregatorStatus = eventAggregationManagementDao
            .getEventAggregatorStatus(ProcessingType.AGGREGATION, true);

    //Update status with current server name
    final String serverName = this.portalInfoProvider.getUniqueServerName();
    final String previousServerName = eventAggregatorStatus.getServerName();
    if (previousServerName != null && !serverName.equals(previousServerName)) {
        this.logger.debug("Last aggregation run on {} clearing all aggregation caches", previousServerName);
        final Session session = getEntityManager().unwrap(Session.class);
        final Cache cache = session.getSessionFactory().getCache();
        cache.evictEntityRegions();
    }

    eventAggregatorStatus.setServerName(serverName);

    //Calculate date range for aggregation
    DateTime lastAggregated = eventAggregatorStatus.getLastEventDate();
    if (lastAggregated == null) {
        lastAggregated = portalEventDao.getOldestPortalEventTimestamp();

        //No portal events to aggregate, skip aggregation
        if (lastAggregated == null) {
            return new EventProcessingResult(0, null, null, true);
        }

        //First time aggregation has run, initialize the CLEAN_UNCLOSED status to save catch-up time 
        final IEventAggregatorStatus cleanUnclosedStatus = eventAggregationManagementDao
                .getEventAggregatorStatus(ProcessingType.CLEAN_UNCLOSED, true);
        AggregationIntervalInfo oldestMinuteInterval = this.intervalHelper
                .getIntervalInfo(AggregationInterval.MINUTE, lastAggregated);
        cleanUnclosedStatus.setLastEventDate(oldestMinuteInterval.getStart().minusMinutes(1));
        eventAggregationManagementDao.updateEventAggregatorStatus(cleanUnclosedStatus);
    }

    final DateTime newestEventTime = DateTime.now().minus(this.aggregationDelay).secondOfMinute()
            .roundFloorCopy();

    final Thread currentThread = Thread.currentThread();
    final String currentName = currentThread.getName();
    final MutableInt events = new MutableInt();
    final MutableObject lastEventDate = new MutableObject(newestEventTime);

    boolean complete;
    try {
        currentThread.setName(currentName + "-" + lastAggregated + "_" + newestEventTime);

        logger.debug("Starting aggregation of events between {} (inc) and {} (exc)", lastAggregated,
                newestEventTime);

        //Do aggregation, capturing the start and end dates
        eventAggregatorStatus.setLastStart(DateTime.now());

        complete = portalEventDao.aggregatePortalEvents(lastAggregated, newestEventTime,
                this.eventAggregationBatchSize,
                new AggregateEventsHandler(events, lastEventDate, eventAggregatorStatus));

        eventAggregatorStatus.setLastEventDate((DateTime) lastEventDate.getValue());
        eventAggregatorStatus.setLastEnd(DateTime.now());
    } finally {
        currentThread.setName(currentName);
    }

    //Store the results of the aggregation
    eventAggregationManagementDao.updateEventAggregatorStatus(eventAggregatorStatus);

    complete = complete
            && (this.eventAggregationBatchSize <= 0 || events.intValue() < this.eventAggregationBatchSize);
    return new EventProcessingResult(events.intValue(), lastAggregated,
            eventAggregatorStatus.getLastEventDate(), complete);
}

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From source file:BO.UserHandler.java

public boolean updateDeviceToken(VUser u) {
    EntityManager em;
    EntityManagerFactory emf;/* w w  w .j  a  v a  2s. c  o m*/
    emf = Persistence.createEntityManagerFactory(PERSISTENCE_NAME);
    em = emf.createEntityManager();
    System.out.println("Updating token: " + u.getDeviceToken());
    try {
        em.getTransaction().begin();
        User user;
        user = (User) em.createQuery("SELECT u FROM User u WHERE u.email LIKE :email")
                .setParameter("email", u.getEmail()).setMaxResults(1).getSingleResult();
        user.setDeviceToken(u.getDeviceToken());
        em.persist(user);
        em.flush();
        em.getTransaction().commit();

        return true;
    } catch (NoResultException e) {
        return false;
    } finally {
        if (em != null) {
            em.close();
        }
        emf.close();
    }

}

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From source file:nl.b3p.kaartenbalie.struts.UserAction.java

@Override
public ActionForward save(ActionMapping mapping, DynaValidatorForm dynaForm, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    User user = getUser(dynaForm, request, true);
    ActionForward af = saveCheck(user, mapping, dynaForm, request);
    if (af != null) {
        return af;
        /*/*w  w w.  j a  va2 s . c om*/
         * Check if this user gets a valid capability when using this personalURL
         */
    }

    Organization org = user.getMainOrganization();
    if (org != null && !org.getHasValidGetCapabilities()) {
        // TODO: we should check for the combination of all organisations
        addAlternateMessage(mapping, request, CAPABILITY_WARNING_KEY);
    }

    /* controleren of er rollen zijn gekozen */
    Integer[] roleSelected = (Integer[]) dynaForm.get("roleSelected");
    int size = roleSelected.length;

    if (size < 1) {
        addAlternateMessage(mapping, request, NOROLES_WARNING_KEY);
    }

    populateUserObject(user, dynaForm, request);

    log.debug("Getting entity manager ......");
    EntityManager em = getEntityManager();
    if (user.getId() == null) {
        em.persist(user);
    } else {
        em.merge(user);
    }
    em.flush();

    updatePrincipal(request, user);

    populateUserForm(user, dynaForm, request);
    createLists(dynaForm, request);

    prepareMethod(dynaForm, request, EDIT, EDIT);
    addDefaultMessage(mapping, request, ACKNOWLEDGE_MESSAGES);
    return getDefaultForward(mapping, request);
}

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From source file:BO.UserHandler.java

public boolean login(VUser u) {

    EntityManager em;
    EntityManagerFactory emf;/*from  w w  w .j ava  2  s .c o  m*/
    emf = Persistence.createEntityManagerFactory(PERSISTENCE_NAME);
    em = emf.createEntityManager();

    try {

        Query q = em.createQuery("SELECT u FROM User u WHERE u.email LIKE :email");
        q.setParameter("email", u.getEmail());
        q.setMaxResults(1);
        q.getSingleResult();
        return true;
    } catch (NoResultException e) {
        em.getTransaction().begin();
        User userToInsert = new User(u.getEmail());
        em.persist(userToInsert);
        em.flush();
        em.getTransaction().commit();
        return true;
    } finally {
        if (em != null) {
            em.close();
        }
        emf.close();
    }
}

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From source file:org.apereo.portal.events.aggr.PortalRawEventsAggregatorImpl.java

private EventProcessingResult doAggregateRawEventsInternal() {
    if (!this.clusterLockService.isLockOwner(AGGREGATION_LOCK_NAME)) {
        throw new IllegalStateException("The cluster lock " + AGGREGATION_LOCK_NAME
                + " must be owned by the current thread and server");
    }/* w w w.java2 s. c om*/

    if (!this.portalEventDimensionPopulator.isCheckedDimensions()) {
        //First time aggregation has happened, run populateDimensions to ensure enough dimension data exists
        final boolean populatedDimensions = this.portalEventAggregationManager.populateDimensions();
        if (!populatedDimensions) {
            this.logger.warn(
                    "Aborting raw event aggregation, populateDimensions returned false so the state of date/time dimensions is unknown");
            return null;
        }
    }

    //Flush any dimension creation before aggregation
    final EntityManager entityManager = this.getEntityManager();
    entityManager.flush();
    entityManager.setFlushMode(FlushModeType.COMMIT);

    final IEventAggregatorStatus eventAggregatorStatus = eventAggregationManagementDao
            .getEventAggregatorStatus(IEventAggregatorStatus.ProcessingType.AGGREGATION, true);

    //Update status with current server name
    final String serverName = this.portalInfoProvider.getUniqueServerName();
    final String previousServerName = eventAggregatorStatus.getServerName();
    if (previousServerName != null && !serverName.equals(previousServerName)) {
        this.logger.debug("Last aggregation run on {} clearing all aggregation caches", previousServerName);
        final Session session = getEntityManager().unwrap(Session.class);
        final Cache cache = session.getSessionFactory().getCache();
        cache.evictEntityRegions();
    }

    eventAggregatorStatus.setServerName(serverName);

    //Calculate date range for aggregation
    DateTime lastAggregated = eventAggregatorStatus.getLastEventDate();
    if (lastAggregated == null) {
        lastAggregated = portalEventDao.getOldestPortalEventTimestamp();

        //No portal events to aggregate, skip aggregation
        if (lastAggregated == null) {
            return new EventProcessingResult(0, null, null, true);
        }

        //First time aggregation has run, initialize the CLEAN_UNCLOSED status to save catch-up time 
        final IEventAggregatorStatus cleanUnclosedStatus = eventAggregationManagementDao
                .getEventAggregatorStatus(IEventAggregatorStatus.ProcessingType.CLEAN_UNCLOSED, true);
        AggregationIntervalInfo oldestMinuteInterval = this.intervalHelper
                .getIntervalInfo(AggregationInterval.MINUTE, lastAggregated);
        cleanUnclosedStatus.setLastEventDate(oldestMinuteInterval.getStart().minusMinutes(1));
        eventAggregationManagementDao.updateEventAggregatorStatus(cleanUnclosedStatus);
    }

    final DateTime newestEventTime = DateTime.now().minus(this.aggregationDelay).secondOfMinute()
            .roundFloorCopy();

    final Thread currentThread = Thread.currentThread();
    final String currentName = currentThread.getName();
    final MutableInt events = new MutableInt();
    final MutableObject lastEventDate = new MutableObject(newestEventTime);

    boolean complete;
    try {
        currentThread.setName(currentName + "-" + lastAggregated + "_" + newestEventTime);

        logger.debug("Starting aggregation of events between {} (inc) and {} (exc)", lastAggregated,
                newestEventTime);

        //Do aggregation, capturing the start and end dates
        eventAggregatorStatus.setLastStart(DateTime.now());

        complete = portalEventDao.aggregatePortalEvents(lastAggregated, newestEventTime,
                this.eventAggregationBatchSize,
                new AggregateEventsHandler(events, lastEventDate, eventAggregatorStatus));

        eventAggregatorStatus.setLastEventDate((DateTime) lastEventDate.getValue());
        eventAggregatorStatus.setLastEnd(DateTime.now());
    } finally {
        currentThread.setName(currentName);
    }

    //Store the results of the aggregation
    eventAggregationManagementDao.updateEventAggregatorStatus(eventAggregatorStatus);

    complete = complete
            && (this.eventAggregationBatchSize <= 0 || events.intValue() < this.eventAggregationBatchSize);
    return new EventProcessingResult(events.intValue(), lastAggregated,
            eventAggregatorStatus.getLastEventDate(), complete);
}

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