Example usage for com.liferay.portal.kernel.dao.orm LockMode UPGRADE

Introduction

In this page you can find the example usage for com.liferay.portal.kernel.dao.orm LockMode UPGRADE.

Prototype

LockMode UPGRADE

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Usage

From source file:com.liferay.counter.service.persistence.CounterFinderImpl.java

License:Open Source License

private CounterHolder _obtainIncrement(String counterName, long range, long size) throws SystemException {

    Session session = null;/* w w w  .  j a  va2 s .  c  o m*/

    try {
        session = openSession();

        Counter counter = (Counter) session.get(CounterImpl.class, counterName, LockMode.UPGRADE);

        long newValue = counter.getCurrentId();

        if (size > newValue) {
            newValue = size;
        }

        long rangeMax = newValue + range;

        counter.setCurrentId(rangeMax);

        CounterHolder counterHolder = new CounterHolder(newValue, rangeMax);

        session.saveOrUpdate(counter);

        session.flush();

        return counterHolder;
    } catch (Exception e) {
        throw processException(e);
    } finally {
        closeSession(session);
    }
}

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