Ok before I break out all the exceptions and code I just want to make sure I understand how Hibernate is supposed to work.

I have an object Company that has many Portfolios, in the Company.hbm.xml it is mapped

<set name="portfolioSet" inverse="true">
<key column="companyID"/>
<one-to-many class="Portfolio"/>
</set>

now when I retrieve a Company object in my DAO

public Company getCompany(Integer id){
Session session = null;

try {
session = SessionFactory.currentSession();

List companyList = session.createCriteria(com.v360.hibernate.model.Company.class)
.add(Expression.eq("id", id))
.list();
return (Company) companyList.get(0);
}
catch (HibernateException e){

throw new RuntimeException(e);
}
finally{
if (session != null)
{
try {
session.close();
}
catch (HibernateException e){
throw new RuntimeException(e);
}
}
}

}

The Company object properities get populated with the appropriate values. How ever when I try to iterate through the Set of Portfolio's I get an exception. Now my question is this, am I suppose to add code to my DAO to populate the Set of Portfolios belonging to a Company or is Hibernate suppose to do this on the retrieveal of the Company?

If Hibernate is suppose to then I'll post my code and all my exceptions.

Regards,

JR

I was closing the session, in my CompanyDAO. Evidently the Set of Portfolios isn't populated until I try and iterate through the Set.

You can use Hibernate.initialize(company.getPortfolioSet()) to initialize the collection while the session is still open. Then you can pass the Company object to whatever layer you want without needing to maintain an open session.

Curtis ...