I have a newbie question, if you don't mind.

Your advanced O/R tutorial shows a 1:1 mapping example
with Article and ProductGroup classes.  You've shown
the table schemas (in German, but I follow you) and
the repository_user.xml.  All very good, of course.  

The repository XML for Article has a productGroupId
that points to the ProductGroup key, and an instance
of ProductGroup that is supposed to be owned by the
Article.

Now if I want to ask the broker to store a brand new
Article, how do I do it?  Is the productGroupId
required to be set to an existing before I call
broker.store(newArticle)?  If I want to have a new
ProductGroup for my Article, do I have to do this as a
five-step transaction?

1. Create a new ProductGroup instance
2. Store the new ProductGroup instance
3. Get the latest ProductGroup instances's primary key
4. Create a new Article, using the PG primary key
5. Store the new Article

I'm sure it's my lack of understanding, because this
feels very difficult.  I'm still climbing that OJB
learning curve.

Thank you for your work, help, and patience. 
Sincerely, MOD


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