co.udea.edu.compumovil.gr10.discoapp.data.dao.implement.CancionDaoImplement.java Source code

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Here is the source code for co.udea.edu.compumovil.gr10.discoapp.data.dao.implement.CancionDaoImplement.java

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package co.udea.edu.compumovil.gr10.discoapp.data.dao.implement;

import co.udea.edu.compumovil.gr10.discoapp.data.dao.CancionDao;
import co.udea.edu.compumovil.gr10.discoapp.data.hibernateconfig.HibernateSessionFactory;
import co.udea.edu.compumovil.gr10.discoapp.domain.entities.Cancion;
import java.util.ArrayList;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

/**
 *
 * @author santiago.gomezp
 */
public class CancionDaoImplement implements CancionDao {

    @Override
    public void insertCancion(Cancion cancion) {

        Session session = null;

        try {
            session = HibernateSessionFactory.getInstance().getSession();
            Transaction transaction = null;

            try {
                transaction = session.getTransaction();
                transaction.begin();
                session.save(cancion);
                transaction.commit();

            } catch (Exception e) {
                System.out.println(e.getMessage());
                System.out.println(e.getCause());
                transaction.rollback();
            }
        } catch (Exception e) {
            System.out.println(e.getMessage());
            System.out.println(e.getCause());
        }

    }

    @Override
    public List<Cancion> getAllCancion() {

        Session session = null;
        List<Cancion> listaCanciones = new ArrayList<Cancion>();

        try {
            session = HibernateSessionFactory.getInstance().getSession();
            Query query = session.createQuery("From Cancion");
            listaCanciones = query.list();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        } finally {
            if (session != null) {
                session.close();
            }
        }
        return listaCanciones;
    }

    @Override
    public void deleteCancion(int idCancion) {
        Session session = null;

        try {
            session = HibernateSessionFactory.getInstance().getSession();
            Transaction transaction = null;
            Cancion cancion = this.getCancion(idCancion);
            try {
                if (cancion != null) {
                    transaction = session.getTransaction();
                    transaction.begin();
                    session.delete(cancion);
                    transaction.commit();
                }
            } catch (Exception e) {
                System.out.println(e.getMessage());
                System.out.println(e.getCause());
                transaction.rollback();
            }
        } catch (Exception e) {
            System.out.println(e.getMessage());
            System.out.println(e.getCause());
        }

    }

    @Override
    public Cancion getCancion(int idCancion) {

        Session session = null;
        Cancion cancion = null;
        try {

            session = HibernateSessionFactory.getInstance().getSession();
            Query query = session.createQuery("from Cancion where idCancion= :idCancion");
            query.setParameter("idCancion", idCancion);
            cancion = (Cancion) query.uniqueResult();

        } catch (Exception e) {
            System.out.println(e.getMessage());
            System.out.println(e.getCause());
        } finally {
            if (session != null) {
                session.close();
            }
        }

        return cancion;

    }

}