com.almacen.dao.empleadoDaoImp.java Source code

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Here is the source code for com.almacen.dao.empleadoDaoImp.java

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package com.almacen.dao;

import com.almacen.model.Empleado;
import com.almacen.util.HibernateUtil;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.Transaction;

public class empleadoDaoImp implements empleadoDAO {

    @Override
    public Empleado guardaEmpleado(Empleado empleado) {
        Session session = HibernateUtil.getSessionFactory().openSession();
        Transaction transaction = session.beginTransaction();

        try {
            session.save(empleado);
            transaction.commit();
            session.close();

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

    @Override
    public Empleado actualizaEmpleado(Empleado empleado) {
        Session session = HibernateUtil.getSessionFactory().openSession();
        Transaction transaction = session.beginTransaction();
        try {

            session.update(empleado);
            transaction.commit();
            session.close();

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

    @Override
    public List<Empleado> listaEmpleados() {
        List<Empleado> listarEmpleado = null;
        Session session = HibernateUtil.getSessionFactory().openSession();
        Transaction transaction = session.beginTransaction();

        try {

            String hql = "FROM Empleado e";
            listarEmpleado = session.createQuery(hql).list();
            transaction.commit();
            session.close();

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

        return listarEmpleado;

    }

    @Override
    public Empleado encuentraEmpleado(Integer idEmpleado) {

        Empleado p = null;
        Session session = HibernateUtil.getSessionFactory().openSession();
        Transaction transaction = session.beginTransaction();

        try {

            String hql = "FROM Empleado d where d.idEmpleado = " + idEmpleado;
            p = (Empleado) session.createQuery(hql).uniqueResult();
            transaction.commit();
            session.close();

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

        return p;

    }

}