CREATE TABLE user (

   id integer NOT NULL,  -- values generated from user_id_seq

   email varchar(128) NOT NULL,

   passwd varchar(128) NOT NULL

);
CREATE SEQUENCE user_id_seq;




public class User {

   private Long id;

   private String email;

   private String password;



   public Long getId() { return id; }

   @SuppressWarnings("unused")

   private void setId(Long i) { id = i; }



   public String getEmail() { return email; }

   public void setEmail(String e) { email = e; }



   public String getPassword() { return password; }

   public void setPassword(String p) { password = p; }



   public int hashCode() {

      return email.hashCode();

   }

   public boolean equals(Object obj) {

      if (this == obj) return true;

      if (!(obj instanceof User)) return false;

      final User that = (User) obj;

      return email.equals(that.getEmail());

   }

}




<hibernate-mapping>
−
   <class name="User" table="user">
−
   <id name="id">
−
   <generator class="sequence">
<param name="sequence">user_id_seq</param>
</generator>
</id>
<property name="email"/>
<property name="password" column="passwd"/>
</class>
</hibernate-mapping>



Dao Class


                        TblUtentiDAO ex = new TblUtentiDAO();
         User vo = new User()
         vo.setEmail("mario@italia.it");
         vo.setDescr("ciao");
         
         ex.SaveOrUpdate(vo);
         ex.getSession().Close();