NDLI: Putting events in context: aspects for event-based distributed programming

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Putting events in context: aspects for event-based distributed programming

Content Provider	ACM Digital Library
Author	Jayaram, K.R. Eugster, Patrick Ziarek, Lukasz Holzer, Adrian
Abstract	Event-based programming is an appealing paradigm for developing pervasive systems since events enable the decoupling of interacting components. Unfortunately, many event-based languages and systems have hardwired notions of physical or logical time and space. This limits their adaptability and target deployment environments, as pervasive systems rely on inherent interaction and interchanging of different protocols and infrastructures. This paper introduces domain-specific aspects for capturing event context, generalizing beyond the classic time and space dimensions associated with events. Through examples, we demonstrate that our context aspects - conspects for short - modularize the design and implementation of event contexts, enabling code reuse, and making programs portable across infrastructures. We illustrate the benefits of conspects by using them to transparently switch protocols in two pervasive software suites implemented in EventJava: (1) a tornado monitoring system deployed on different architectures ranging from desktop x86 to embedded LEON3, and (2) a mobile social networking suite with protocols for different application scenarios.
Starting Page	241
Ending Page	252
Page Count	12
File Format	PDF
ISBN	9781450306058
DOI	10.1145/1960275.1960304
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-03-21
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Context Events Aspects
Content Type	Text
Resource Type	Article

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