[rules-users] How to add application data via StatefulKnowledgeSession

Can someone please show me an example where application data is added to workingMemory as described here: http://docs.codehaus.org/display/DROOLS/Application+Data using StatefulKnowledgeSession? I have a need to populate an object from a rules file and I don't want that object itself to be treated as a rule.  All the examples I can find refer to the use of ruleBase to get workingMemory.  My code utilizes StatefulKnowledgeSession to fire rules and I don't see how to get ruleBase or workingMemory from it.  Thanks.