Example usage for org.hibernate Session clear

Introduction

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

Prototype

void clear();

Source Link

Document

Completely clear the session.

Usage

From source file:com.globalsight.persistence.hibernate.HibernateUtil.java

License:Apache License

/**
 * Save or update some instance. More informations you can see
 * <code>saveOrUpdate(Object object)</code>.
 * /*from w  ww. j a v a 2 s  .  c  om*/
 * @param objects
 *            persistent classes
 * @throws Exception
 */
public static void saveOrUpdate(Collection<?> objects) throws Exception {
    if (objects != null && objects.size() > 0) {
        Session session = getSession();
        Transaction tx = getTransaction();
        try {
            Iterator<?> iterator = objects.iterator();
            int n = 0;
            while (iterator.hasNext()) {
                session.saveOrUpdate(iterator.next());

                // Release memory.
                n++;
                if (n % 20 == 0) {
                    session.flush();
                    session.clear();
                }
            }

            commit(tx);
        } catch (Exception e) {
            rollback(tx);
            e.printStackTrace();
            throw e;
        }
    }
}

From source file:com.globalsight.persistence.hibernate.HibernateUtil.java

License:Apache License

/**
 * /*from  w  w  w. ja  va2  s. c o  m*/
 * 
 * @param session
 *            the session is not null, managed by invoked method.
 * @param objects
 *            need updated data
 * @throws Exception
 */
public static void saveOrUpdate(Session session, Collection<?> objects) throws Exception {
    if (objects != null && objects.size() > 0) {

        if (session == null) {
            throw new Exception("No Hibernate session provided, can not access database.");
        }
        Iterator<?> iterator = objects.iterator();
        int n = 0;
        while (iterator.hasNext()) {
            session.saveOrUpdate(iterator.next());
            // Release memory.
            n++;
            if (n % 20 == 0) {
                session.flush();
                session.clear();
            }
        }
    }
}

From source file:com.google.api.ads.adwords.awreporting.model.persistence.sql.SqlReportEntitiesPersister.java

License:Open Source License

/**
 * Persists all the given entities into the DB configured in the {@code SessionFactory}.
 *///from   w  w w. j  a va  2  s  .com
@Override
@Transactional
public void persistReportEntities(List<? extends Report> reportEntities) {
    int batchFlush = 0;
    Session session = sessionFactory.getCurrentSession();

    for (Report report : reportEntities) {
        report.setRowId();
        session.saveOrUpdate(report);
        batchFlush++;

        if (batchFlush == batchSize) {
            session.flush();
            session.clear();
            batchFlush = 0;
        }
    }

    if (batchFlush > 0) {
        session.flush();
        session.clear();
    }
}

From source file:com.google.api.ads.adwords.jaxws.extensions.report.model.persistence.sql.SqlReportEntitiesPersister.java

License:Open Source License

/**
 * Persists all the given entities into the DB configured in the {@code SessionFactory}
 *///from ww  w. j a v a  2 s  .  c o  m
@Override
@Transactional
public void persistReportEntities(List<? extends Report> reportEntities) {

    int batchFlush = 0;

    Session session = this.sessionFactory.getCurrentSession();

    for (Report report : reportEntities) {
        report.setId();
        session.saveOrUpdate(report);
        batchFlush++;

        if (batchFlush == BATCH_SIZE) {
            session.flush();
            session.clear();
        }
    }
}

From source file:com.griddynamics.jagger.storage.rdb.HibernateKeyValueStorage.java

License:Open Source License

public void putAll(Namespace namespace, Multimap<String, Object> valuesMap) {
    Session session = null;
    int count = 0;
    try {/*  w  w w  .j  a v  a  2 s  .c  o  m*/
        session = getHibernateTemplate().getSessionFactory().openSession();
        session.beginTransaction();
        for (String key : valuesMap.keySet()) {
            Collection<Object> values = valuesMap.get(key);
            for (Object val : values) {
                session.save(createKeyValue(namespace, key, val));
                count++;
                if (count % getHibernateBatchSize() == 0) {
                    session.flush();
                    session.clear();
                }
            }
        }
        session.getTransaction().commit();
    } finally {
        if (session != null) {
            session.close();
        }
    }
}

From source file:com.hihsoft.sso.business.service.TaclModuleinfoServiceTestCase.java

License:Apache License

/**??:hibernate5000??spring???<50000?
 * 4000???CPU//from  w w w .jav  a2 s . c om
 * Testsave or update tacl role.
 */
@Test
public void testsaveOrUpdateTaclModuleinfo() {
    TsysModuleinfo moduleinfo = null;
    // Session
    Configuration cfg = new Configuration();
    SessionFactory sf = cfg.configure().buildSessionFactory();
    Session session = sf.openSession();
    // 
    Transaction tx = session.beginTransaction();
    // 100 000?100 000?
    for (int i = 1000000; i < 2000000; i++) {
        // Moduleinfo
        moduleinfo = new TsysModuleinfo();
        moduleinfo.setModulename("moduleinfo" + i);
        moduleinfo.setModulename("00000001" + i);
        moduleinfo.setFlatid("8a9e848a2ed74230012ed7424737000a");
        session.save(moduleinfo);
        // ?20?Session??Session
        if (i % 5000 == 0) {
            session.flush();
            session.clear();
            tx.commit();
            tx = session.beginTransaction();
        }
    }
    // ??
    tx.commit();
    // 
    session.close();

}

From source file:com.humber.java.dao.AlbumDAO.java

public Album getAlbumById(int albumId) {
    Album album = null;//from www .j  a  va2  s. c om
    Transaction trns = null;
    Session session = HibernateUtil.getSessionFactory().openSession();
    try {
        trns = session.beginTransaction();
        String queryString = "from Album where id = :id";
        Query query = session.createQuery(queryString);
        query.setInteger("id", albumId);
        album = (Album) query.uniqueResult();
    } catch (RuntimeException e) {
        e.printStackTrace();
    } finally {
        session.clear();
        session.flush();
        session.close();
    }
    return album;
}

From source file:com.hyzy.core.orm.hibernate.HibernateDao.java

License:Apache License

/**
 * ??/*w w w  .  jav  a2  s . c  o m*/
 * @param lsit
 * @return
 * @throws SQLException 
 */
@Transactional
public void saveOrupdatBatch(List<Object> list) {

    int batchSize = 100;
    if (list == null || list.isEmpty())
        return;
    Session session = null;
    Transaction tx = null;
    try {
        session = getSessionFactory().openSession();
        tx = session.getTransaction();
        tx.begin();
        for (int i = 0; i < list.size(); i++) {
            session.merge((list.get(i)));
            if (i % batchSize == 0) {
                session.flush();
                session.clear();
            }
        }
        tx.commit();
    } catch (Exception e) {
        e.printStackTrace();
        tx.rollback();
    } finally {
        if (null != tx) {
            tx = null;
        }
        if (null != session) {
            session = null;
        }
    }
}

From source file:com.iaito.atsws.services.ClientServiceImpl.java

@Override
public List<Reader> getReaderList() {
    Transaction tx;/*from   w ww  . j  a  v a2 s  . c  o m*/
    Session session = HibernateUtil.getSessionFactory().getCurrentSession();
    try {
        tx = session.beginTransaction();
        Query query = session.createQuery("from Reader");
        List<Reader> readerList = (List<Reader>) query.list();
        session.flush();
        session.clear();
        tx.commit();

        return readerList;
    } catch (Exception e) {
        session.getTransaction().rollback();
        System.out.println(
                "Exception from -------------ClientServiceImpl.java----getReaderList()--" + e.getMessage());
    }
    return null;
}

From source file:com.iaito.atsws.services.ClientServiceImpl.java

@Override
public List<TagLog> getTagLogs(String reader) {
    Transaction tx;//from  ww w.j  av  a 2s.  c om
    Session session = HibernateUtil.getSessionFactory().getCurrentSession();
    try {
        tx = session.beginTransaction();
        String s = "select * from tag_log w where at_reader='" + reader
                + "' and arrival=1 and departure=0 and entry_done=0";
        Query query = session.createSQLQuery(s).addEntity(TagLog.class);
        List<TagLog> readerList = (List<TagLog>) query.list();
        session.flush();
        session.clear();
        tx.commit();

        return readerList;
    } catch (Exception e) {
        session.getTransaction().rollback();
        System.out.println(
                "Exception from -------------ClientServiceImpl.java----getTagLogs()--" + e.getMessage());
    }
    return null;
}