27 An Adaptive Middleware Platform

This paper describes an adaptive middleware platform, consisting of the interface model, framework model and perception model, which respectively build on components-based, reflection and event-driven technologies. The interface model encapsulates reusable implementation code, and makes it interact with its environment through well-defined interfaces. The framework model classifies component, and makes component statically or its corresponding object dynamically evolvable. The perception model based on event-driven asynchronous push model opens component object's inner states to outer world. Finally, this paper presents an application example of the implementation of GUI system on our platform.