My original vision of this feature was to have the XPath expression (and/or Regex expression) "inline" - embedded in the jboss-esb.xml. The inline approach makes it much, much easier from a learning curve standpoint. It does require a reload/redeploy of the jboss-esb.xml and its .esb archive to make a change happen. I think inline is a must-have for learning curve standpoint. The value of the external file approach, like in the Drools-based CBR, is that I can change the file without causing a redeploy of the .esb archive, no touch to jboss-esb.xml. So I like both options. :-) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4256381#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...