br.univel.common.Dao.java Source code

Introduction

Here is the source code for br.univel.common.Dao.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.univel.common;

import br.univel.util.HibernateUtil;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.criterion.Criterion;

/**
 *
 * @author juliano
 */
public class Dao<Model> {

    private Class<Model> model;

    public Dao() {
        model = (Class<Model>) ((ParameterizedType) getClass().getGenericSuperclass()).getActualTypeArguments()[0];
    }

    public void create(Model model) {

        Session session = HibernateUtil.getSessionFactory().openSession();
        session.beginTransaction();
        session.persist(model);
        session.getTransaction().commit();
        session.close();
        //    HibernateUtil.finalizar();
    }

    public List<Model> read(Criterion criterion) {
        Session session = HibernateUtil.getSessionFactory().openSession();
        session.beginTransaction();
        List<Model> list = session.createCriteria(model).add(criterion).list();
        session.getTransaction().commit();
        session.close();
        //    HibernateUtil.finalizar();
        return list;
    }

    public void update(Model model) {
        Session session = HibernateUtil.getSessionFactory().openSession();
        session.beginTransaction();
        session.saveOrUpdate(model);
        session.getTransaction().commit();
        session.close();
        //    HibernateUtil.finalizar();
    }

    public void delete(Model model) {
        Session session = HibernateUtil.getSessionFactory().openSession();
        session.beginTransaction();
        session.delete(model);
        session.getTransaction().commit();
        session.close();
        //    HibernateUtil.finalizar();
    }
}