Persist object with Hibernate

package com.javacodegeeks.snippets.enterprise;

import java.util.Date;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class PersistOjectWithHibernate {
	
	private static SessionFactory sessionFactory;
	
	public static void main(String[] args) {
		
		sessionFactory = new Configuration().configure().buildSessionFactory();
		
		Session session = sessionFactory.getCurrentSession();
		
		Employee employee = new Employee();
		employee.setName("Jack");
		employee.setSurname("Thomson");
		employee.setTitle("QA Engineer");
		employee.setCreated(new Date());
		
		try {
			session.beginTransaction();
			session.save(employee);
			session.getTransaction().commit();
		}
		catch (HibernateException e) {
			e.printStackTrace();
			session.getTransaction().rollback();
		}
		
	}

}

<?xml version='1.0' encoding='utf-8'?>

<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
        
<hibernate-configuration>
    <session-factory>
        <!-- JDBC connection settings -->
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost/companydb</property>
        <property name="connection.username">jcg</property>
        <property name="connection.password">jcg</property>
        
        <!-- JDBC connection pool, use Hibernate internal connection pool -->
        <property name="connection.pool_size">5</property>

        <!-- Defines the SQL dialect used in Hiberante's application -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

        <!-- Enable Hibernate's automatic session context management -->
        <property name="current_session_context_class">thread</property>

        <!-- Disable the second-level cache  -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

        <!-- Display and format all executed SQL to stdout -->
        <property name="show_sql">true</property>
        <property name="format_sql">true</property>

        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">update</property>
        
        <!-- Mapping to hibernate mapping files -->
        <mapping resource="Employee.hbm.xml" />
        
    </session-factory>
    
</hibernate-configuration>

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
        
<hibernate-mapping>

    <class name="com.javacodegeeks.snippets.enterprise.Employee" table="employee">
        <id name="id" column="id">
            <generator class="native"/>
        </id>
        <property name="name" not-null="true" length="50" />
        <property name="surname" not-null="true" length="50" />
        <property name="title" length="50" />
        <property name="created" type="timestamp" />
    </class>
    
</hibernate-mapping>

CREATE TABLE `companydb`.`employee` (
  `id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
  `name` VARCHAR(45) NOT NULL,
  `surname` VARCHAR(45) NOT NULL,
  `title` VARCHAR(45) NOT NULL,
  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`)
);

Hibernate: 
    insert 
    into
        employee
        (name, surname, title, created) 
    values
        (?, ?, ?, ?)