Content based Routing?

Hi Forum,

I've looked through the messages regarding content based routing or similar's but the answers did not satisfy my needs. I have an XSLT mapping from a flat file structure to an IDOC. To qualify the receiving system I have to do a database lookup in my XSLT mapping by a Java extension function with combining some of the inputfields. The result of this database lookup is the Receiver System. How can I use this result in the condition Editor for the receiver determination. I can only use here the Nodes from the inputmessage. Are there other ways to have access to a "global Container" where I can store the results from the databaselookup to use them here?

Thanks for you patience

Manfred Schmidt-Voigt