Propagation of Behavioral Variations with Delegation Proxies

Camille Teruel (1) , Erwann Wernli (2) , Stéphane Ducasse (1) , Oscar Nierstrasz (2)

1 RMOD - Analyses and Languages Constructs for Object-Oriented Application Evolution
2 SCG - Software Composition Group [Bern]

Scoping behavioral variations to dynamic extents is useful to support non-functional concerns that otherwise result in cross-cutting code. Unfortunately, such forms of scoping are difficult to obtain with traditional reflection or aspects. We propose delegation proxies, a dynamic proxy model that supports behavioral intercession through the interception of various interpretation operations. Delegation proxies permit different behavioral variations to be easily composed together. We show how delegation proxies enable behavioral variations that can propagate to dynamic extents. We demonstrate our approach with examples of behavioral variations scoped to dynamic extents that help simplify code related to safety, reliability, and monitoring.

Mots clés: propagation; proxy; reflection; dynamic extent; delegation

Domaines: Langage de programmation [cs.PL]

Camille Teruel, Erwann Wernli, Stéphane Ducasse, Oscar Nierstrasz. Propagation of Behavioral Variations with Delegation Proxies. LNCS Transactions on Aspect-Oriented Software Development, 2015, 8989, pp.63-95. ⟨10.1007/978-3-662-46734-3_2⟩. ⟨hal-01135706⟩