Study And Application Of Middleware Based On Reflection Technology

Reflective middleware is a noteworthy new direction of middleware research. It eliminates the deficiency of traditional object-oriented middleware systems by opening their"black-box"structure and providing inspection and adaptation capabilities for developers with computational reflection techniques. Reflective middleware supports the customization for different application domains and the adaptation of distributed applications to dynamically evolving environments and user requirements. Its strength has already been shown in the areas such as mobile computing, multimedia applications, etc.This paper has an extensive research to the reflection and middleware technology. Base on the study of the structure of some useful reflective middleware, we propose a reflective middleware model. The design of the model is base on component, leads to flexible middleware system. At the same time, for adapting multiple meta-level structures, the model can solve the problem of poor simple structure in reflective middleware designation.The work of the paper also includes applying a reflective middleware - OpenORB in a VoIP management system. Because of adapting reflective middleware, we can widely improve the adaptability of system and meet the needs of different users.