br.com.sigcopex.dao.DisciplinaDAO.java Source code

Introduction

Here is the source code for br.com.sigcopex.dao.DisciplinaDAO.java

Source

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package br.com.sigcopex.dao;

import br.com.sigcopex.domain.Disciplina;
import br.com.sigcopex.util.HibernateUtil;
import java.util.*;
import org.hibernate.*;

/**
 *
 * @author Roberto
 */
public class DisciplinaDAO {
    public void salvar(Disciplina disciplina) {
        Session sessao = HibernateUtil.getSessionFactory().openSession();
        Transaction transacao = null;

        try {
            transacao = sessao.beginTransaction();
            sessao.save(disciplina);
            transacao.commit();
        } catch (RuntimeException ex) {
            if (transacao != null) {
                transacao.rollback();
            }
            throw ex;
        } finally {
            sessao.close();
        }

    }

    public List<Disciplina> listar() {
        Session sessao = HibernateUtil.getSessionFactory().openSession();
        List<Disciplina> cursos = null;

        try {
            Query consulta = sessao.getNamedQuery("Disciplina.listar");
            cursos = consulta.list();
        } catch (RuntimeException ex) {
            throw ex;
        } finally {
            sessao.close();
        }
        return cursos;
    }

    public Disciplina buscarPorCodigo(Long codigo) {
        Session sessao = HibernateUtil.getSessionFactory().openSession();
        Disciplina disciplina = null;

        try {
            Query consulta = sessao.getNamedQuery("Disciplina.buscarPorCodigo");
            consulta.setLong("codigo", codigo);

            disciplina = (Disciplina) consulta.uniqueResult();
        } catch (RuntimeException ex) {
            throw ex;
        } finally {
            sessao.close();
        }

        return disciplina;
    }

    public void excluir(Disciplina disciplina) {
        Session sessao = HibernateUtil.getSessionFactory().openSession();
        Transaction transacao = null;

        try {
            transacao = sessao.beginTransaction();
            sessao.delete(disciplina);
            transacao.commit();
        } catch (RuntimeException ex) {
            if (transacao != null) {
                transacao.rollback();
            }
            throw ex;
        } finally {
            sessao.close();
        }
    }

    public void editar(Disciplina disciplina) {
        Session sessao = HibernateUtil.getSessionFactory().openSession();
        Transaction transacao = null;

        try {
            transacao = sessao.beginTransaction();
            sessao.update(disciplina);
            transacao.commit();
        } catch (RuntimeException ex) {
            if (transacao != null) {
                transacao.rollback();
            }
            throw ex;
        } finally {
            sessao.close();
        }
    }
}