Example usage for org.hibernate Session buildLockRequest

Introduction

In this page you can find the example usage for org.hibernate Session buildLockRequest.

Prototype

LockRequest buildLockRequest(LockOptions lockOptions);

Source Link

Document

Build a LockRequest that specifies the LockMode, pessimistic lock timeout and lock scope.

Usage

From source file:org.jspresso.framework.application.backend.persistence.hibernate.HibernateBackendController.java

License:Open Source License

/**
 * Locks an entity (LockMode.NONE) in current hibernate session.
 *
 * @param entity/*  ww  w .j  a  v a 2 s. c  o m*/
 *     the entity to lock.
 * @param hibernateSession
 *     the hibernate session.
 */
private void lockInHibernate(IEntity entity, Session hibernateSession) {
    if (!hibernateSession.contains(entity)) {
        // Do not use get before trying to lock.
        // Get performs a DB query.
        try {
            hibernateSession.buildLockRequest(LockOptions.NONE).lock(entity);
        } catch (NonUniqueObjectException ex) {
            if (hibernateSession == noTxSession) {
                hibernateSession.clear();
                hibernateSession.buildLockRequest(LockOptions.NONE).lock(entity);
            } else {
                throw ex;
            }
        }
    }
}

From source file:org.molasdin.wbase.hibernate.BasicHibernateRepository.java

License:Apache License

private void attachRaw(T o, Session session) {
    if (session.contains(o)) {
        return;/*from ww w  .ja  va2 s .  c  om*/
    }
    session.buildLockRequest(LockOptions.NONE).lock(o);
}

From source file:org.molasdin.wbase.hibernate.cursor.BasicFilteredHibernateCursor.java

License:Apache License

@SuppressWarnings("unchecked")
@Override/*from w  ww.j a v a  2 s  .co m*/
public List<T> dataCallback(Session session) {
    StringBuilder builder = new StringBuilder();
    session.buildLockRequest(LockOptions.NONE).lock(owner);
    builder.append(populateFilters());
    builder.append(' ');

    List<Pair<String, Order>> orders = orders();
    if (!orders.isEmpty()) {
        builder.append("order by ");
        boolean added = false;
        for (Pair<String, Order> order : orders) {
            if (added) {
                builder.append(",");
            }
            builder.append(String.format(FILTER_ORDER, order.getLeft(),
                    Order.ASC.equals(order.getRight()) ? ORDER_ASC : ORDER_DESC));
            added = true;
        }
        builder.append(' ');
    }

    return postProcessData((List<T>) session.createFilter(collectionProxy, builder.toString())
            .setFirstResult(calculatedRowOffset()).setMaxResults(pageSize()).list());
}

From source file:org.molasdin.wbase.hibernate.cursor.BasicFilteredHibernateCursor.java

License:Apache License

@Override
public Long totalCallback(Session session) {
    StringBuilder builder = new StringBuilder();
    builder.append("select count(*) ");
    builder.append(populateFilters());//from   w w w.ja v  a 2 s.  co m
    session.buildLockRequest(LockOptions.NONE).lock(owner);
    return (Long) session.createFilter(collectionProxy, builder.toString()).uniqueResult();
}

From source file:org.obiba.opal.core.upgrade.v2_0_x.database.FixAttributeJoinTableUpgradeStep.java

License:Open Source License

@SuppressWarnings("unchecked")
private void touchValueTablesTimestamps(final Database database) {
    transactionTemplate.execute(new TransactionCallbackWithoutResult() {
        @Override//from  ww  w . j a v a  2  s .c  om
        protected void doInTransactionWithoutResult(TransactionStatus status) {
            SessionFactory sessionFactory = databaseRegistry.getSessionFactory(database.getName(), null);
            Session currentSession = sessionFactory.getCurrentSession();
            for (ValueTableState table : (List<ValueTableState>) currentSession
                    .createCriteria(ValueTableState.class).list()) {
                log.debug("Touch {} last update", table.getName());
                currentSession.buildLockRequest(new LockOptions(LockMode.PESSIMISTIC_FORCE_INCREMENT))
                        .lock(table);
            }
        }
    });
}

From source file:org.openmrs.cwf.api.util.OpenMRSUtil.java

License:Mozilla Public License

public static void loadIfNecessary(Object domainObject) {
    Session session = null;

    try {//  w  w w  . j  a  v a  2 s.c o m
        session = getSessionFactory().getCurrentSession();

        if (!session.contains(domainObject)) {
            LockRequest lr = session.buildLockRequest(LockOptions.NONE);
            lr.lock(domainObject);
        }
    } catch (org.hibernate.NonUniqueObjectException exc) {
        session.merge(domainObject);
    } catch (org.hibernate.LazyInitializationException exc) {
        session.merge(domainObject);
    }
}

From source file:org.sakaiproject.assignment.impl.persistence.AssignmentRepositoryImpl.java

License:Educational Community License

@Override
@Transactional/*from  w ww . jav a 2s. c  o  m*/
public AssignmentSubmission newSubmission(String assignmentId, Optional<String> groupId,
        Optional<Set<AssignmentSubmissionSubmitter>> submitters, Optional<Set<String>> feedbackAttachments,
        Optional<Set<String>> submittedAttachments, Optional<Map<String, String>> properties) {
    Assignment assignment = findAssignment(assignmentId);
    if (assignment != null) {
        Session session = sessionFactory.getCurrentSession();
        // Since this transaction is going to add a submission to the assignment we lock the assignment
        // the lock is freed once transaction is committed or rolled back
        session.buildLockRequest(LockOptions.UPGRADE).setLockMode(LockMode.PESSIMISTIC_WRITE).lock(assignment);

        AssignmentSubmission submission = new AssignmentSubmission();
        submission.setDateCreated(Instant.now());
        submitters.ifPresent(submission::setSubmitters);
        submitters.ifPresent(s -> s.forEach(submitter -> submitter.setSubmission(submission)));
        feedbackAttachments.ifPresent(submission::setFeedbackAttachments);
        submittedAttachments.ifPresent(submission::setAttachments);
        properties.ifPresent(submission::setProperties);
        if (assignment.getIsGroup()) {
            groupId.ifPresent(submission::setGroupId);
        }

        submission.setAssignment(assignment);
        assignment.getSubmissions().add(submission);

        session.persist(assignment);
        return submission;
    }
    return null;
}

From source file:org.springframework.orm.hibernate4.HibernateTemplate.java

License:Apache License

@Override
public void lock(final Object entity, final LockMode lockMode) throws DataAccessException {
    executeWithNativeSession(new HibernateCallback<Object>() {
        @Override/*from   w w w  . j a  v  a 2s.  co  m*/
        public Object doInHibernate(Session session) throws HibernateException {
            session.buildLockRequest(new LockOptions(lockMode)).lock(entity);
            return null;
        }
    });
}

From source file:org.springframework.orm.hibernate4.HibernateTemplate.java

License:Apache License

@Override
public void lock(final String entityName, final Object entity, final LockMode lockMode)
        throws DataAccessException {

    executeWithNativeSession(new HibernateCallback<Object>() {
        @Override// w w  w .  j a v a2  s .  c om
        public Object doInHibernate(Session session) throws HibernateException {
            session.buildLockRequest(new LockOptions(lockMode)).lock(entityName, entity);
            return null;
        }
    });
}

From source file:org.springframework.orm.hibernate4.HibernateTemplate.java

License:Apache License

@Override
public void update(final Object entity, final LockMode lockMode) throws DataAccessException {
    executeWithNativeSession(new HibernateCallback<Object>() {
        @Override/*  w ww. j ava2  s .  co  m*/
        public Object doInHibernate(Session session) throws HibernateException {
            checkWriteOperationAllowed(session);
            session.update(entity);
            if (lockMode != null) {
                session.buildLockRequest(new LockOptions(lockMode)).lock(entity);
            }
            return null;
        }
    });
}