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:cloudoutput.database.HibernateUtil.java

License:Open Source License

/** 
 * Closes a given database session./*from   w ww .  j av  a2  s. c  o m*/
 *
 * @param   session     the session to be closed.
 * @since               1.0
 */
public static void closeSession(Session session) {
    if (session != null) {
        session.clear();
        session.close();
    }
}

From source file:cn.lhfei.airqa.dao.support.Hibernate4DaoSupport.java

License:Apache License

public void batchInsert(List<E> list) {
    Session session = sessionFactory.openSession();
    Transaction tx = session.beginTransaction();

    for (int i = 0; i < list.size(); i++) {
        session.save(list.get(i));//from   www  . j a v  a2  s . com
        if (i % 50 == 0) { //50, same as the JDBC batch size
            //flush a batch of inserts and release memory:
            session.flush();
            session.clear();
        }
    }

    tx.commit();
    session.close();
}

From source file:cn.newtouch.model.TeacherTest.java

License:Open Source License

@Test
public void testClear() {

    Session session = HibernateUtil.getSession();
    session.beginTransaction();//w  ww. j  av  a 2 s  .  c  o m
    Teacher t = (Teacher) session.load(Teacher.class, 1);
    System.out.println(t.getName());

    session.clear();

    Teacher t2 = (Teacher) session.load(Teacher.class, 1);
    System.out.println(t2.getName());
    session.getTransaction().commit();

}

From source file:cn.newtouch.model.TeacherTest.java

License:Open Source License

@Test
public void testFlush() {

    Session session = HibernateUtil.getSession();
    session.beginTransaction();/* w  ww  .ja va 2  s  .  c o m*/
    Teacher t = (Teacher) session.load(Teacher.class, 1);
    t.setName("tttt");

    session.clear();

    t.setName("ttttt");

    session.getTransaction().commit();

}

From source file:cn.sharek.bsg.machine.dao.impl.DMLDaoImpl.java

@Override
public void save(Collection<T> entities, Session session) throws Exception {
    int i = 0;//from   w  ww  .  j  a  va  2 s .co m
    //???
    for (Object obj : entities) {
        session.save(obj);

        i++;
        //??
        if (0 == i % 10) {
            session.flush();//?
            session.clear();//
        }
    }
}

From source file:cn.sharek.bsg.machine.dao.impl.DMLDaoImpl.java

@Override
public void delete(Collection<T> entities, Session session) throws Exception {
    int i = 0;/*from w w w .  j  a v a 2s  .  c  om*/
    //???
    for (Object obj : entities) {
        session.delete(obj);
        i++;
        //??
        if (0 == i % 10) {
            session.flush();//?
            session.clear();//
        }
    }
}

From source file:com.advdb.footballclub.FootBallClub.java

private void createCompetition(Session session, int length) {
    Transaction transaction = null;/*  w  ww . ja  v a  2  s .  c om*/
    try {
        System.out.println("start createCompetition.");
        transaction = session.beginTransaction();
        Calendar date = new GregorianCalendar();
        int endYear = date.get(Calendar.YEAR);
        for (int year = endYear - length; year <= endYear; year++) {
            for (String competitionName : COMPETITION_NAME_ARR) {
                int seasonStartYear = year;
                int seasonEndYear = seasonStartYear + 1;
                String seasonName = seasonStartYear + "/" + seasonEndYear;
                DimCompetition d = new DimCompetition(competitionName, seasonName, seasonStartYear,
                        seasonEndYear);
                session.save(d);
            }
            session.flush();
            session.clear();
        }
        transaction.commit();
        System.out.println("finish createCompetition.");
    } catch (HibernateException e) {
        if (transaction != null) {
            transaction.rollback();
        }
    }
}

From source file:com.advdb.footballclub.FootBallClub.java

private void createTactic(Session session) {
    Transaction transaction = null;/* w w  w .j  av  a 2 s  .c  om*/
    try {
        System.out.println("start createTactic.");
        transaction = session.beginTransaction();
        for (int i = 0; i < TACTIC_INSTRUCTION_ARR.length; i++) {
            DimTactic d = new DimTactic(TACTIC_NAME_ARR[i], TACTIC_INSTRUCTION_ARR[i]);
            session.save(d);
        }
        session.flush();
        session.clear();
        transaction.commit();
        System.out.println("finish createTactic.");
    } catch (HibernateException e) {
        if (transaction != null) {
            transaction.rollback();
        }
    }
}

From source file:com.advdb.footballclub.FootBallClub.java

private void createOpponent(Session session) {

    Transaction transaction = null;/*  w ww .  j a v  a2  s.  com*/
    try {
        System.out.println("start createOpponent.");
        transaction = session.beginTransaction();
        Reader in = new FileReader("/Users/apichart/Documents/DW_opponent/DimOpponent-Table 1.csv");
        Iterable<CSVRecord> records = CSVFormat.DEFAULT.parse(in);
        for (CSVRecord record : records) {
            String longName = record.get(2);
            String shortName = record.get(3);
            DimOpponent d = new DimOpponent(longName, shortName);
            session.save(d);
        }
        in.close();
        session.flush();
        session.clear();
        transaction.commit();

        System.out.println("finish createOpponent.");
    } catch (HibernateException e) {
        if (transaction != null) {
            transaction.rollback();
        }
    } catch (FileNotFoundException ex) {
        Logger.getLogger(FootBallClub.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(FootBallClub.class.getName()).log(Level.SEVERE, null, ex);
    }

}

From source file:com.advdb.footballclub.FootBallClub.java

private void createPlayer(Session session) {

    Transaction transaction = null;/* www.  ja v a  2  s.c o  m*/
    try {
        System.out.println("start createPlayer.");
        transaction = session.beginTransaction();
        Reader in = new FileReader("/Users/apichart/Documents/DW_opponent/DimPlayer-Table 1.csv");
        Iterable<CSVRecord> records = CSVFormat.DEFAULT.parse(in);
        for (CSVRecord record : records) {
            String name = record.get(2);
            String nationality = record.get(3);
            String value = record.get(4);
            String height = record.get(6);
            String weight = record.get(7);
            DimPlayer d = new DimPlayer(name, nationality, Double.valueOf(value), Double.valueOf(height),
                    Double.valueOf(weight));
            session.save(d);
        }
        in.close();
        session.flush();
        session.clear();
        transaction.commit();

        System.out.println("finish createPlayer.");
    } catch (HibernateException e) {
        if (transaction != null) {
            transaction.rollback();
        }
    } catch (FileNotFoundException ex) {
        Logger.getLogger(FootBallClub.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(FootBallClub.class.getName()).log(Level.SEVERE, null, ex);
    }

}