Screaming Penguin - Source Does Matter

I am just starting to use Castor with Axis, but I thought Castor was for creating Java Objects from XML Schema (and vice versa, serializing to XML Schema I guess) and I thought Hibernate was a proprietary thing to persist java objects and then it manages an offline store to a database (uses memory for all its interaction with the app and then periodically persists to database)?

So I probably dont understand correctly but the two dont really seem interchangeable to me. Does Castor persist somewhere other than to filesystem?

Castor does JDBC persistence. I honestly have never been a fan of using its XML binding and code generation stuff, myself. Some people feel its not a flexible as Hibernate. However, it has the best OQL support of anything out there, and the option of doing "Lazy Loading" with the Castor data bound collections makes it much more memory friendly if you are dealing with very large datasets.

I have never looked really hard Spring, but I might. However, I am so far along with the code now that I might go back and retrofit it later.

I'm reworking the plans on the feed stuff, but I hope to have something there soon.