On building a reflective middleware service for location-awareness

Location based services are becoming essential feature of context-awareness in ubiquitous computing. Reflective distribute component programming model is proposed to systematically provide location to Location Based Services (LBS). We integrate distributed component technology and reflection to develop localization capability as middleware service. Concept of Meta Object Protocols (Reflection) is used in different way than traditional reflective mechanisms. It deals with the state of the component that is not inside the component rather resides outside of it, namely extrinsic. This component model provides the basis for middleware architecture to support location providing service at design, implementation and run time. We describe the methodology we used to build location-awareness as middleware service based upon our reflective component model.