Hi See https://issues.apache.org/jira/browse/CAMEL-3564
And the nabble link for the user story. Basically in XML DSL you may want to use an expression which refer to a bean in the registry. This was in fact not easy to do out of the box. What we need basically is a expression in the DSL for that. However that means we add more stuff to the DSL. So should we do that? Its really not much its something like <constant> but its just <ref ref="xxx"/> What name should we use? And is the <ref ref="xxx"/> syntax okay? In the mean time I have added a ref function to the simple expression so you can use that for now. eg: <simple>ref:xxx</simple> -- Claus Ibsen ----------------- FuseSource Email: cib...@fusesource.com Web: http://fusesource.com Twitter: davsclaus Blog: http://davsclaus.blogspot.com/ Author of Camel in Action: http://www.manning.com/ibsen/