Exception Handling and Asynchronous Active Objects: Issues and Proposal

Asynchronous Active Objects (AAOs), primarily exemplied by actors [1], nowadays exist in many forms (various kinds of actors, agents and components) and are more and more used because they t well the dynamic and asynchronous nature of interactions in many distributed systems. They raise various new issues regarding exception handling for which few operational solutions exist. More precisely, a need exists for a generic, simple and expressive, programmer level, exception handling system that appropriately handles the following main exception handling issues or requirements in the context of AAOs: encapsulation, object autonomy, coordination of concurrent collaborative entities [2], caller contextualization [3], asynchronous signaling and handler execution, resolution of concurrent exceptions [4,5], exception criticality [6] and object reactivity. This paper presents the specication of an evolution of the Sage exception handling system [7], which provides solutions to those issues in the...

• Type: Conference
• Year: 2006
• Where: ECOOPWEXCEPTION
• Authors: Christophe Dony, Christelle Urtado, Sylvain Vauttier
• Keywords: Active Objects, Asynchronous, ECOOPWEXCEPTION 2006, Exception Handling, Software Engineering