Property Hiding

kancharla_g · **Joined:** Tue Jul 12, 2005 9:50 pm **Posts:** 7

I am new to Hibernate, please help me the solving the below problem.

How to hide some properties from a persistance object?
I have login table containing the userid, password and other userinformation columns. I need to retrive the persistance object based on the userid and compare the password in the session bean. if successful the persistance object should be sent to the presentation tier.
But now my problem is when I send the object to the presentation tier, the object also contains the Password which is supposed to be protected. Is there any way to hide just password field alone from a persistant object.

shl · **Posted:** Fri Jul 15, 2005 6:35 am

use Transfer Object.

Code:

public class LoginTo {
    private Long id;
    private String userName;

    public LoginTo(Long id, String userName) {
      .....
    }
....
...
}

The following query returns constructed Transfer Object (LoginTo):

Code:

select new LoginTo(login.id, login.userName) from Login
where login.userName=? AND login.isActive=?

So your Login.password will not got to the representation tire.

shl · **Posted:** Fri Jul 15, 2005 6:37 am

As you got it should be Login login:

Code:

select new LoginTo(login.id, login.userName) from Login login
where login.userName=? AND login.isActive=?