Run-Time Evolution through Explicit Meta-Objects

[e-mail] 2010.

工业技术;计算机科学

Jorge Ressia ; Lukas Renggli ; Tudor Gîrba ; Oscar Nierstrasz

Others  :  http://ceur-ws.org/Vol-641/paper_11.pdf
PID  :  42377

来源: CEUR

【 摘 要 】

Software must be constantly adapted due to evolving domain knowledge and unanticipated requirements changes. To adapt a system at run-time we need to reflect on its structure and its behavior. Object-oriented languages introduced reflection to deal with this issue, however, no reflective approach up to now has tried to provide a unified solution to both structural and behavioral reflection. This paper describes Albedo, a unified approach to structural and behavioral reflection. Albedo is a model of fined-grained unanticipated dynamic structural and behavioral adaptation. Instead of providing reflective capabilities as an external mechanism we integrate them deeply in the environment. We show how explicit meta-objects allow us to provide a range of reflective features and thereby evolve both application models and environments atrun-time.