An Aspectual Connector Model and Its ADL

Connector, an important concept in software architecture design, is considered as the first-class entity. In order to solve the code-tangling and code-scattering caused by crosscutting concerns, this paper puts forwards an aspectual connector model and its ADL. Then it discusses the implementation of aspectual connector based on AspectJ, which implicitly weaves aspectual connector and component. Furthermore, the implementation makes the weave process transparent and flexible and increases the component reusability and adaptation. We demonstrate the use of the aspectual connector on the architecture of a simplified book management system.