Is it possible to avoid XPRESS?

We are currently evaluating Sun Java System Identity Manager to augment and replace our homegrown identity management software. Many aspects of this product look really good to me but writing real logic in the XPRESS language looks painful. I also hate to embed our business logic in a proprietary language. Since it is possible to call Java methods from XPRESS I'm just wondering if we could successfully put all our workflow and rule logic into Java classes and reserve XPRESS for simple things such as setting property values.
Has anyone else done this? Are there any gotchas I'm not seeing?
Thanks much!

Yeah the IDM API's can change during an IDM service pack upgrade - they seem to change from version to version. I got this information from talking to Sun and other industry partners. I originally was on the same train of thought as you - as Java is more universal. XPRESS is not the ideal way of coding but it's not too bad once you get use to it. Sorta feels like Functional Programming. You might want to talk to Sun about the product a bit more.
Can you explain that comment further? I don't
understand how a service pack upgrade could affect my
java code. Do you mean that the IDM API's change?
Can you tell me where you got this information
from?
Thanks,
Robin

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