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

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

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/*
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package br.com.sigcopex.dao;

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

/**
 *
 * @author Roberto
 */
public class ProfessorDAO {
    public void salvar(Professor professor) {
        Session sessao = HibernateUtil.getSessionFactory().openSession();
        Transaction transacao = null;

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

    }

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

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

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

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

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

        return professor;
    }

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

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

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

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