Example usage for javax.persistence LockModeType OPTIMISTIC

Introduction

In this page you can find the example usage for javax.persistence LockModeType OPTIMISTIC.

Prototype

LockModeType OPTIMISTIC

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Document

Optimistic lock.

Usage

From source file:com.czecht.architecture.ddd.annotations.support.infrastructure.repository.jpa.GenericJpaRepository.java

@Transactional(propagation = Propagation.SUPPORTS)
public A load(AggregateId id) {
    //lock to be sure when creating other objects based on values of this aggregate
    A aggregate = entityManager.find(clazz, id, LockModeType.OPTIMISTIC);

    if (aggregate == null)
        throw new RuntimeException("Aggregate " + clazz.getCanonicalName() + " id = " + id + " does not exist");

    if (aggregate.isRemoved())
        throw new RuntimeException("Aggragate + " + id + " is removed.");

    spring.autowireBean(aggregate);/* w  w w.ja v  a 2s .c o  m*/

    return aggregate;
}

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From source file:net.kamhon.ieagle.dao.Jpa2Dao.java

@SuppressWarnings("unchecked")
public T getReadonly(final PK serializablekey) {
    return em.find((Class<T>) t.getClass(), serializablekey, LockModeType.OPTIMISTIC);
}

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From source file:net.kamhon.ieagle.dao.JpaDao.java

@Override
public T getReadonly(final Class<T> clazz, final Serializable serializablekey) {
    return getJpaTemplate().execute(new JpaCallback<T>() {
        @Override//  www. j  a  v a 2 s .  c  o m
        public T doInJpa(EntityManager em) throws PersistenceException {
            return em.find(clazz, serializablekey, LockModeType.OPTIMISTIC);
        }
    });
}

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From source file:org.cleverbus.core.common.dao.ExternalCallDaoJpaImpl.java

@Override
@Transactional(propagation = Propagation.MANDATORY)
public void lockExternalCall(ExternalCall extCall) throws PersistenceException {
    Assert.notNull(extCall, "the extCall must not be null");
    Assert.isTrue(extCall.getState() != ExternalCallStateEnum.PROCESSING,
            "the extCall must not be locked in a processing state");

    Assert.isTrue(em.contains(extCall), "the extCall must be attached");
    // note: https://blogs.oracle.com/carolmcdonald/entry/jpa_2_0_concurrency_and
    em.lock(extCall, LockModeType.OPTIMISTIC);
    extCall.setState(ExternalCallStateEnum.PROCESSING);
}

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From source file:se.nrm.dina.data.jpa.impl.DinaDaoImpl.java

@Override
public T findById(int id, Class<T> clazz, boolean isVersioned) {
    logger.info("findById - class : {} - id : {}", clazz, id);

    T tmp = null;/*www .jav a 2 s.  c om*/
    try {
        if (isVersioned) {
            tmp = entityManager.find(clazz, id, LockModeType.OPTIMISTIC);
        } else {
            tmp = entityManager.find(clazz, id, LockModeType.PESSIMISTIC_READ);
        }
        entityManager.flush();
        return tmp;
    } catch (OptimisticLockException ex) {
        entityManager.refresh(tmp);
        throw new DinaDatabaseException(new ErrorBean(clazz.getSimpleName(), ex.getMessage()), 400);
    } catch (Exception ex) {
        throw new DinaDatabaseException(new ErrorBean(clazz.getSimpleName(), ex.getMessage()), 400);
    }
}

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From source file:org.key2gym.business.services.CashServiceBean.java

@Override
public void recordCashAdjustment(CashAdjustmentDTO cashAdjustment)
        throws ValidationException, SecurityViolationException {

    if (!callerHasRole(SecurityRoles.MANAGER)) {
        throw new SecurityViolationException(getString("Security.Operation.Denied"));
    }/*from w  w  w  .  j ava 2s .  c om*/

    if (cashAdjustment == null) {
        throw new NullPointerException("The cashAdjustment is null."); //NOI18N
    }

    if (cashAdjustment.getDate() == null) {
        throw new NullPointerException("The cashAdjustment.getDate() is null."); //NOI18N
    }

    if (cashAdjustment.getAmount() == null) {
        throw new NullPointerException("The cashAdjustment.getAmount() is null."); //NOI18N
    }

    validateAmount(cashAdjustment.getAmount());

    if (cashAdjustment.getNote() == null) {
        throw new NullPointerException("The cashAdjustment.getNote() is null."); //NOI18N
    }

    CashAdjustment entityCashAdjustment = em.find(CashAdjustment.class, cashAdjustment.getDate().toDate(),
            LockModeType.OPTIMISTIC);

    if (entityCashAdjustment == null) {
        entityCashAdjustment = new CashAdjustment();
        entityCashAdjustment.setDateRecorded(cashAdjustment.getDate().toDate());
        entityCashAdjustment.setAmount(cashAdjustment.getAmount());
        entityCashAdjustment.setNote(cashAdjustment.getNote());

        em.persist(entityCashAdjustment);
    } else {
        entityCashAdjustment.setDateRecorded(cashAdjustment.getDate().toDate());
        entityCashAdjustment.setAmount(cashAdjustment.getAmount());
        entityCashAdjustment.setNote(cashAdjustment.getNote());
    }

    em.flush();
}

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From source file:se.nrm.dina.data.jpa.DinaDaoImpl.java

@Override
public T findById(int id, Class<T> clazz) {
    logger.info("findById - class : {} - id : {}", clazz, id);

    // Entity has no version can not have Optimistic lock
    if (clazz.getSimpleName().equals(Recordsetitem.class.getSimpleName())
            || clazz.getSimpleName().equals(Sppermission.class.getSimpleName())
            || clazz.getSimpleName().equals(Workbenchrow.class.getSimpleName())
            || clazz.getSimpleName().equals(Workbenchdataitem.class.getSimpleName())
            || clazz.getSimpleName().equals(Workbenchrowimage.class.getSimpleName())
            || clazz.getSimpleName().equals(Geoname.class.getSimpleName())) {

        return entityManager.find(clazz, id, LockModeType.PESSIMISTIC_WRITE);
    }//from  www  .  jav a  2s  .  c  o m

    T tmp = null;
    try {
        tmp = entityManager.find(clazz, id, LockModeType.OPTIMISTIC);
        entityManager.flush();
    } catch (OptimisticLockException ex) {
        entityManager.refresh(tmp);
        logger.warn(ex.getMessage());
    } catch (Exception ex) {
        logger.warn(ex.getMessage());
    }
    return tmp;
}

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From source file:bq.jpa.demo.lock.service.LockService.java

/**
 * Statistic//  w  w  w.j  av  a  2 s  .  c o m
 */
@Transactional
public void doStatisticSalary() {
    try {
        lock.lock();

        TypedQuery<Employee> query = em.createQuery("SELECT e FROM jpa_lock_employee e", Employee.class);
        List<Employee> results = query.getResultList();
        System.out.println("[thread-reading] query employees");

        for (Employee employee : results) {
            em.lock(employee, LockModeType.OPTIMISTIC);
            em.flush();
        }
        System.out.println("[thread-reading] lock employees");
        writeCondition.signal();
        readCondition.await();
        Thread.sleep(1000);

        float totalSalary = 0f;
        for (Employee employee : results) {
            totalSalary += employee.getSalary();
        }

        System.out.println("[thread-reading] total salary is :" + totalSalary);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        lock.unlock();
    }
}

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From source file:op.care.med.inventory.DlgOpenStock.java

private void btnOKActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnOKActionPerformed
    if (cmbBestID.getSelectedIndex() > 0) {
        EntityManager em = OPDE.createEM();
        try {/*ww w. ja  v a 2  s. co m*/
            em.getTransaction().begin();
            medStock = em.merge((MedStock) cmbBestID.getSelectedItem());
            em.lock(medStock, LockModeType.OPTIMISTIC);
            em.lock(em.merge(medStock.getInventory().getResident()), LockModeType.OPTIMISTIC);

            medStock.setOpened(new Date());

            em.getTransaction().commit();
        } catch (javax.persistence.OptimisticLockException ole) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            if (ole.getMessage().indexOf("Class> entity.info.Resident") > -1) {
                OPDE.getMainframe().emptyFrame();
                OPDE.getMainframe().afterLogin();
            }
            OPDE.getDisplayManager().addSubMessage(DisplayManager.getLockMessage());
        } catch (Exception e) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            OPDE.fatal(e);
        } finally {
            em.close();
        }
        dispose();
    }
}

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From source file:op.care.values.PnlValues.java

private java.util.List<Component> addCommands() {
    java.util.List<Component> list = new ArrayList<Component>();

    JideButton controlButton = GUITools.createHyperlinkButton(
            SYSTools.xx("nursingrecords.vitalparameters.btnControlling.tooltip"), SYSConst.icon22magnify1,
            new ActionListener() {
                @Override//  w w  w .j a  va2  s.  co  m
                public void actionPerformed(ActionEvent actionEvent) {
                    if (!resident.isActive()) {
                        OPDE.getDisplayManager()
                                .addSubMessage(new DisplayMessage("misc.msg.cantChangeInactiveResident"));
                        return;
                    }
                    new DlgValueControl(resident, new Closure() {
                        @Override
                        public void execute(Object o) {
                            if (o != null) {
                                EntityManager em = OPDE.createEM();
                                try {
                                    em.getTransaction().begin();
                                    Resident myResident = em.merge(resident);
                                    em.lock(myResident, LockModeType.OPTIMISTIC);
                                    myResident.setControlling((Properties) o);
                                    em.getTransaction().commit();

                                    resident = myResident;
                                } catch (OptimisticLockException ole) {
                                    OPDE.warn(ole);
                                    if (em.getTransaction().isActive()) {
                                        em.getTransaction().rollback();
                                    }
                                    if (ole.getMessage().indexOf("Class> entity.info.Resident") > -1) {
                                        OPDE.getMainframe().emptyFrame();
                                        OPDE.getMainframe().afterLogin();
                                    }
                                    OPDE.getDisplayManager().addSubMessage(DisplayManager.getLockMessage());
                                } catch (Exception e) {
                                    if (em.getTransaction().isActive()) {
                                        em.getTransaction().rollback();
                                    }
                                    OPDE.fatal(e);
                                } finally {
                                    em.close();
                                }

                            }
                        }
                    });
                }
            });
    list.add(controlButton);

    return list;
}

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