at.ac.tuwien.swa.swazam.server.UserRequestHistoryRepo.java Source code

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Here is the source code for at.ac.tuwien.swa.swazam.server.UserRequestHistoryRepo.java

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package at.ac.tuwien.swa.swazam.server;

import java.util.List;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.criterion.Restrictions;

/**
 *
 * @author 19992_000
 */
public class UserRequestHistoryRepo {
    SessionFactory factory;

    public UserRequestHistoryRepo() {
        try {
            factory = new Configuration().configure().buildSessionFactory();
        } catch (HibernateException ex) {
            System.err.println("Failed to create sessionFactory object." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }

    public void update(UserRequestHistory item) {
        Session session = factory.openSession();
        Transaction tx = null;
        try {
            tx = session.beginTransaction();
            session.update(item);
            tx.commit();
        } catch (HibernateException e) {
            if (tx != null)
                tx.rollback();
        } finally {
            session.close();
        }
    }

    public void insert(UserRequestHistory item) {
        Session session = factory.openSession();
        Transaction tx = null;
        try {
            tx = session.beginTransaction();
            session.persist(item);
            tx.commit();
        } catch (HibernateException e) {
            if (tx != null)
                tx.rollback();
        } finally {
            session.close();
        }
    }

    public void delete(UserRequestHistory item) {
        Session session = factory.openSession();
        Transaction tx = null;
        try {
            tx = session.beginTransaction();
            session.delete(item);
            tx.commit();
        } catch (HibernateException e) {
            if (tx != null)
                tx.rollback();
        } finally {
            session.close();
        }
    }

    public UserRequestHistory read(long id) {
        Session session = factory.openSession();
        try {
            return (UserRequestHistory) session.createCriteria(UserRequestHistory.class)
                    .add(Restrictions.eq("userName", id)).uniqueResult();
        } catch (HibernateException e) {
        } finally {
            session.close();
        }
        return null;
    }

    public UserRequestHistory[] readAll() {
        Session session = factory.openSession();
        try {
            List<UserRequestHistory> items = (List<UserRequestHistory>) session
                    .createCriteria(UserRequestHistory.class).list();
            UserRequestHistory[] users = new UserRequestHistory[items.size()];
            int i = 0;
            for (UserRequestHistory user : items) {
                users[i++] = user;
            }
            return users;
        } catch (HibernateException e) {
        } finally {
            session.close();
        }
        return null;
    }
}