Example usage for javax.persistence EntityManager getTransaction

List of usage examples for javax.persistence EntityManager getTransaction

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Introduction

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

Prototype

public EntityTransaction getTransaction();

Source Link

Document

Return the resource-level EntityTransaction object.

Usage

From source file:com.enioka.jqm.tools.Helpers.java

/**
 * Creates or updates a node.<br>//  w ww  .  j a  v a  2 s.  c  o  m
 * This method makes the assumption metadata is valid. e.g. there MUST be a single default queue.<br>
 * Call {@link #updateConfiguration(EntityManager)} before to be sure if necessary.
 * 
 * @param nodeName
 *            name of the node that should be created or updated (if incompletely defined only)
 * @param em
 *            an EntityManager on which a transaction will be opened.
 */
static void updateNodeConfiguration(String nodeName, EntityManager em) {
    // Node
    Node n = null;
    try {
        n = em.createQuery("SELECT n FROM Node n WHERE n.name = :l", Node.class).setParameter("l", nodeName)
                .getSingleResult();
    } catch (NoResultException e) {
        jqmlogger.info("Node " + nodeName
                + " does not exist in the configuration and will be created with default values");
        em.getTransaction().begin();

        n = new Node();
        n.setDlRepo(System.getProperty("user.dir") + "/outputfiles/");
        n.setName(nodeName);
        n.setPort(0);
        n.setRepo(System.getProperty("user.dir") + "/jobs/");
        n.setTmpDirectory(System.getProperty("user.dir") + "/tmp/");
        n.setRootLogLevel("INFO");
        em.persist(n);
        em.getTransaction().commit();
    }

    // Deployment parameters
    DeploymentParameter dp = null;
    long i = (Long) em.createQuery("SELECT COUNT(dp) FROM DeploymentParameter dp WHERE dp.node = :localnode")
            .setParameter("localnode", n).getSingleResult();
    if (i == 0) {
        jqmlogger.info(
                "As this node is not bound to any queue, it will be set to poll from the default queue with default parameters");
        Queue q = em.createQuery("SELECT q FROM Queue q WHERE q.defaultQueue = true", Queue.class)
                .getSingleResult();
        em.getTransaction().begin();
        dp = new DeploymentParameter();
        dp.setNbThread(5);
        dp.setNode(n);
        dp.setPollingInterval(1000);
        dp.setQueue(q);
        em.persist(dp);

        em.getTransaction().commit();
    }
}

From source file:com.sixsq.slipstream.persistence.Run.java

public static Run updateRunState(Run run, States newState, boolean retry) {
    EntityManager em = PersistenceUtil.createEntityManager();
    EntityTransaction transaction = em.getTransaction();
    transaction.begin();//from ww w .ja  v  a 2  s .c  o m
    try {
        run = Run.loadFromUuid(run.getUuid(), em);
        run.setState(newState);
        transaction.commit();
        em.close();
    } catch (Exception e) {
        String error = "error setting run state: " + newState;
        if (retry) {
            Logger.getLogger("restlet").warning(error + " retrying...");
        } else {
            Logger.getLogger("restlet").severe(error);
        }
        // retry once
        if (retry) {
            updateRunState(run, newState, false);
        }
    }
    return run;
}

From source file:com.soen.ebanking.dao.ObjectDao.java

public void addObject(Object entity) {
    EntityManager em = this.getEMF().createEntityManager();
    try {//from w  w w  .  j a  va2 s.  c o  m
        em.getTransaction().begin();
        em.persist(entity);
        em.getTransaction().commit();
    } finally {
        em.close();
    }
}

From source file:com.soen.ebanking.dao.ObjectDao.java

public void deleteObject(Object object, long id, Class<T> ClassName) {
    EntityManager em = this.getEMF().createEntityManager();
    try {//  w  w  w .ja v  a2s  . co  m
        em.getTransaction().begin();
        T entity = em.find(ClassName, id);
        em.remove(entity);
        em.getTransaction().commit();
    } finally {
        em.close();
    }
}

From source file:ict.DoLoginServlet.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods.//from ww w.  j a  v  a 2s  .  co  m
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    PrintWriter out = response.getWriter();
    try {
        EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("WSPU");
        EntityManager entityManager = entityManagerFactory.createEntityManager();
        entityManager.getTransaction().begin();

        String _request = request.getParameter("AAA");
        String userID = new String(Base64.decodeBase64(_request));

        String _request_ = request.getParameter("BBB");
        String userPassword = new String(Base64.decodeBase64(_request_));

        //String userID = request.getParameter("userID");
        //String userPassword = request.getParameter("userPassword");
        User tmp = new User();
        tmp.setUserID(userID);
        tmp.setPassword(userPassword);
        System.out.println("*****" + tmp.getUserID());

        User user = entityManager.find(User.class, tmp.getUserID());
        if (user.getPassword().equals(tmp.getPassword())) {
            entityManager.getTransaction().commit();
            entityManager.close();
            entityManagerFactory.close();
            request.getSession(true).setAttribute("user", user.getUserName());
        }

    } catch (Exception e) {
        System.out.println("****ERROR:****" + e.getMessage());
    }
    response.sendRedirect("index.jsp");
}

From source file:br.edimarmanica.fazenda.control.LoadBBControl.java

private boolean load(Pessoa pessoa, String file) {

    EntityManager em = Conexao.getEntityManager();
    em.getTransaction().begin();

    boolean error = false;

    try (CSVParser parser = CSVParser.parse(new File(file), Charset.forName("ISO-8859-1"),
            CSVFormat.EXCEL.withHeader())) {
        for (CSVRecord record : parser) {
            TipoCaixa tc = new TipoCaixa();
            tc.setCdBb(new BigInteger(record.get("Nmero do documento")));

            if (tc.getCdBb() != null) {
                List<TipoCaixa> tcs = daoTipo.search(tc);
                if (tcs != null && tcs.size() == 1) {
                    Caixa caixa = new Caixa();
                    caixa.setCdTipoCaixa(tcs.get(0));
                    caixa.setCdPessoa(pessoa);
                    caixa.setVlCaixa((new BigDecimal(record.get("Valor"))).abs());
                    caixa.setDtPagamento(new Date(record.get("Data")));
                    caixa.setDtVencimento(new Date(record.get("Data")));
                    caixa.setDsCaixa("IMPORTAO BB 02");
                    em.persist(caixa);/*from   w  ww. j  a  v  a2s .  co m*/
                }
            }

        }
    } catch (IOException ex) {
        Logger.getLogger(LoadBBControl.class.getName()).log(Level.SEVERE, null, ex);
        error = true;
    }

    if (!error) {
        em.getTransaction().commit();
    } else {
        em.getTransaction().rollback();
    }
    em.close();
    return !error;
}

From source file:eu.clarin.cmdi.virtualcollectionregistry.VirtualCollectionRegistryMaintenanceImpl.java

protected void purgeDeletedCollections(EntityManager em, final Date nowDatePurge) {
    em.getTransaction().begin();
    TypedQuery<VirtualCollection> q = em.createNamedQuery("VirtualCollection.findAllByState",
            VirtualCollection.class);
    q.setParameter("state", VirtualCollection.State.DELETED);
    q.setParameter("date", nowDatePurge);
    q.setLockMode(LockModeType.PESSIMISTIC_WRITE);
    for (VirtualCollection vc : q.getResultList()) {
        vc.setState(VirtualCollection.State.DEAD);
        em.remove(vc);/* ww w.  j  a  v a  2 s . c o  m*/
        logger.debug("purged virtual collection (id={})", vc.getId());
    }
    em.getTransaction().commit();
}

From source file:eu.clarin.cmdi.virtualcollectionregistry.VirtualCollectionRegistryMaintenanceImpl.java

protected void handleCollectionsInError(EntityManager em, final Date nowDateError) {
    em.getTransaction().begin();
    TypedQuery<VirtualCollection> q = em.createNamedQuery("VirtualCollection.findAllByState",
            VirtualCollection.class);
    q.setParameter("state", VirtualCollection.State.ERROR);
    q.setParameter("date", nowDateError);
    q.setLockMode(LockModeType.PESSIMISTIC_WRITE);
    for (VirtualCollection vc : q.getResultList()) {
        VirtualCollection.State currentState = vc.getState();
        logger.info("Found [{}] in error state.", vc.getName(), currentState);
        //TODO: handle virtual collections in error state
    }// w  w w  .  j  ava 2 s.co  m
    em.getTransaction().commit();
}

From source file:eu.clarin.cmdi.virtualcollectionregistry.VirtualCollectionRegistryMaintenanceImpl.java

protected void allocatePersistentIdentifiers(EntityManager em, final Date nowDateAlloc) {
    em.getTransaction().begin();
    TypedQuery<VirtualCollection> q = em.createNamedQuery("VirtualCollection.findAllByStates",
            VirtualCollection.class);
    List<VirtualCollection.State> states = new LinkedList<>();
    states.add(VirtualCollection.State.PUBLIC_PENDING);
    states.add(VirtualCollection.State.PUBLIC_FROZEN_PENDING);
    q.setParameter("states", states);
    q.setParameter("date", nowDateAlloc);
    q.setLockMode(LockModeType.PESSIMISTIC_WRITE);
    for (VirtualCollection vc : q.getResultList()) {
        allocatePersistentIdentifier(em, vc);
    }// www.j a va  2s.c o m
    em.getTransaction().commit();
}

From source file:com.soen.ebanking.dao.ObjectDao.java

public void updateObject(Object entity, long id, Class<T> ClassName) {
    EntityManager em = this.getEMF().createEntityManager();
    try {//from   w  w  w  . ja  va 2s . c om
        em.getTransaction().begin();
        this.t = (T) em.find(ClassName, id);
        Object orig = entity;
        Object dest = this.t;
        BeanUtils.copyProperties(dest, orig);
        entity = t;
        t = null;
        em.getTransaction().commit();
    } catch (IllegalAccessException ex) {
        Logger.getLogger(ObjectDao.class.getName()).log(Level.SEVERE, null, ex);
    } catch (InvocationTargetException ex) {
        Logger.getLogger(ObjectDao.class.getName()).log(Level.SEVERE, null, ex);
    } finally {
        em.close();
    }
}