Handling SAP deep structure via JCo

Hello-

I have an RFC enabled function module in my ECC 6 system that I'd like to call using the JCo API's. I have read conflicting materials on whether this is even possible or not. Can anyone confirm if it is possible or not, and if you have a general description of how you handled it with the Java code it would be much appreciated. I am an experienced SAP developer who is delving into JCo for the first time.

Thanks,

Andy