Sort-based refactoring of crosscutting concerns to aspects

Authors:
Robin van der Rijst;Marius Marin;Arie van Deursen
Affiliations:
Delft University of Technology, The Netherlands;Accenture, The Netherlands;Delft University of Technology, The Netherlands
Venue:
Proceedings of the 2008 AOSD workshop on Linking aspect technology and evolution
Year:
2008

Citing 9
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Abstract

Crosscutting concerns in object-oriented programming hinder evolution because of their symptoms: tangling and scattering. To benefit from the modularisation capabilities for crosscutting concerns provided by aspect-oriented programming (which prevent tangling and scattering) aspect-introducing refactoring can be used. The first step in aspect-introducing refactoring is identifying and documenting crosscutting concerns in existing code. The second step is refactoring the identified concerns to aspects. This paper describes a tool called SAIR that can perform the second step of the aspect-introducing refactoring. For the first step, documenting, SAIR uses crosscutting concern sorts. Of the various possible sorts, SAIR currently supports the two most commonly encountered ones: Role Superimposition and Consistent Behavior. The refactoring towards aspects of concerns of these sorts is illustrated on an open source application (JHotDraw).