core.db.impl.BankDaoImpl.java Source code

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Here is the source code for core.db.impl.BankDaoImpl.java

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package core.db.impl;

import core.db.HibernateUtil;
import core.db.entity.Bank;
import core.db.ints.BankDao;
import java.util.ArrayList;
import java.util.List;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.criterion.Restrictions;

/**
 *
 * @author Rastislav
 */
public class BankDaoImpl implements BankDao {

    /**
     * vrati zoznam bank z databazy
     * @return zoznam bank
     */
    @Override
    public List<Bank> getAll() {
        List<Bank> banks = new ArrayList<>();
        Session session = HibernateUtil.getSessionFactory().openSession();
        banks = session.createCriteria(Bank.class).list();
        session.close();
        return banks;
    }

    /**
       * vracia banku z databazy podla id
       * @param id id banky
       * @return vracia banku s danym id
       * @see Bank
       */
    @Override
    public Bank getById(Long id) {
        Session session = HibernateUtil.getSessionFactory().openSession();
        Criteria criteria = session.createCriteria(Bank.class);
        criteria.add(Restrictions.eq("id", id));
        List<Bank> banks = criteria.list();
        if (banks.get(0) != null) {
            Bank bank = banks.get(0);
            session.close();
            return bank;
        } else {
            session.close();
            return null;
        }
    }

    /**
        * prida banku do databazy
        * @param bank objekt Bank, ktory bude pridany
        * @see Bank
        */
    @Override
    public void saveBank(Bank bank) {
        Session session = HibernateUtil.getSessionFactory().openSession();
        session.save(bank);
        session.close();
    }

    /**
        * maze banku z databazy
        * @param bank objekt Bank, ktory bude zmazany
        * @see Bank
        */
    @Override
    public void deleteBank(Bank bank) {
        Transaction tx = null;
        Session session = null;
        try {
            session = HibernateUtil.getSessionFactory().openSession();
            tx = session.beginTransaction();
            tx.setTimeout(5);

            session.delete(bank);

            tx.commit();

        } catch (RuntimeException e) {
            try {
                tx.rollback();
            } catch (RuntimeException rbe) {

            }
            throw e;
        } finally {
            if (session != null) {
                session.close();
            }

        }

    }
}