code: public Object visit() {
  		Object o = null;
  		try {
  			ContainerWrapper containerWrapper = containerCallback.getContainerWrapper();
  			TargetMetaRequest targetMetaRequest = targetMetaRequestsHolder.getTargetMetaRequest();
  			Debug.logVerbose("[JdonFramework] ComponentOriginalVisitor active:" + targetMetaRequest.getVisitableName(), module);
  			//targetMetaRequest.setVisitableName change the value
  			Visitable vo = (Visitable) containerWrapper.lookup(targetMetaRequest.getVisitableName());
  			o = vo.accept();
  		} catch (Exception ex) {
  			Debug.logError("[JdonFramework] ComponentOriginalVisitor active error: " + ex);
  		}
  		return o;
  	}
docs: find the visitable component from container, and execute it's accept
  method, the return result is the tager service object.