org.hibernate.LazyInitializationException: How to properly use Hibernate's lazy loading feature

Question

I got some trouble loading a list of objects from my database using Hibernate and lazy=true mode. Hope that someone can help me out here.

I have a simple class here

Answer 1

You need to wrap your entire process within a transaction.

So instead of starting and commiting the transaction in loadUserAccount, do it outside of that.

For example:

public void processAccount()
{
    getSession().beginTransaction();
    UserAccount userAccount = loadUserAccount("User");
    Vector accts = userAccount.getMailAccounts();  //This here is lazy-loaded -- DB requests will happen here
    getSession().getTransaction().commit();
}

Usually, you want to wrap your transaction around the entire unit of work. I suspect that your understanding of transactions is a little too fine grained.