[jboss-as7-dev] How can an injector derive the DeploymentUnit from the class that is being injected into?

Is there currently a way to derive the DeploymentUnit for the object that is being injected into? This will help me to identify which PersistenceUnit service to access. The service name is derived from the persistence unit name and the fully qualified path to it (e.g. myapp.ear/lib/myejb3stuff.jar#MY-PU-DEF). Scott