Building a dynamically reconfigurable minimum CORBA platform with components, connectors and language-level support.

Abstract

Introduction Middleware and distributed object request brokers (ORBs) are characterised by the need to support a range of end-user applications and execution environments, each with different requirements, simultaneously and on behalf of different users. The dynamic adaptation of a middleware system provides a means of tailoring the behaviour of the middleware to the needs of the current mix of applications, users and the execution environment. It is clear from previous work that creating adaptable object-based systems requires the developer to provide some mechanism for constraining dependencies [2] and communication [1] between objects in the face of potential adaptations. A combination of component-based and reflection approaches to building adaptable ORBs offers the possibility of explicit dependency and communication management between the different subsystems (components) in an ORB.