Hi,

An User has more than one Address.
When I retrieve a user by Id, I don't force to initialize the collection "Addresses".

If after I want to access to the Addresses, I must open the session, initialize Addresses and close session.
Do you think is it a good idea to put this code directly in the getAddresses of User (business) class. Like this :


class User implements Serializable {

Set addresses;

....

public java.util.Set getAddresses() {
if (!this.addresses.isInitialized) {
Session session = SessionBean.getSessionBean().getHibernateSession() //get the hibernate session
session.beginTransaction();
Hibernate.initialize(addresses);
session.close()
}
return this.addresses;
}
}

What do you think about this ?
I searched in Archive but I did not find a good solution for retrieve collections just when we want to use them with one session by HttpRequest.

Thank you,

J

Absolutely not. You have to remember that Hibernate itself is going to be calling these methods.

Is your web tier opening and closing Hibernate sessions? Assuming you loaded the user when they logged in and stored it into session and then need to display some stuff later, is that correct? If both are true, when you need to display the user's addresses grab the session for the given request and do:


Also, you may want to consider not storing the user object into session, or at least timing it out, so you don't run into data consistency issues. Maybe just store their id or username (i.e., the Memento pattern [GoF]).

Absolutely not. You have to remember that Hibernate itself is going to be calling these methods.

Ok, it is what I thank, but I am not sure. It is more clear for me now.

Is your web tier opening and closing Hibernate sessions? Assuming you loaded the user when they logged in and stored it into session and then need to display some stuff later, is that correct?

Yes, thank you for the answer

[...]


Also, you may want to consider not storing the user object into session, or at least timing it out, so you don't run into data consistency issues. Maybe just store their id or username (i.e., the Memento pattern [GoF]).

Yes, good, I will see that.