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17th Meeting on Object-oriented programming, Systems, Languages and Applications (OOPSLA 2002)

作者： Soares, S Laureano, E Borba, P Univ Fed Pernambuco Informat Ctr Recife PE Brazil Catholic Univ Pernambuco Informat & Stat Dept Recife PE Brazil

This paper reports our experience using aspectJ, a general-purpose aspect-oriented extension to Java, to implement distribution and persistence aspects in a web-based information system. This system was originally implemented in Java and restructured with aspectJ. Our main contribution is to show that aspectJ is useful for implementing several persistence and distribution concerns in the application considered, and other similar applications. We have also identified a few drawbacks in the language and suggest some minor modifications that could significantly improve similar implementations. Despite the drawbacks, we argue that the aspectJ implementation is superior to the pure Java implementation. Some of the aspects implemented in our experiment are abstract and constitute a simple aspect framework. The other aspects are application specific but we suggest that different implementations might follow the same aspect pattern. The framework and the pattern allow us to propose architecture-specific guidelines that provide practical advice for both restructuring and implementing certain kinds of persistent and distributed applications with aspectJ.

关键词： languages standardization experimentation aspect-oriented programming separation of concerns aspectJ distributed programming object persistence

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Design pattern implementation in Java and aspectJ 02

Design pattern implementation in Java and AspectJ

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17th Meeting on Object-oriented programming, Systems, Languages and Applications (OOPSLA 2002)

作者： Hannemann, J Kiczales, G Univ British Columbia Vancouver BC V6T 1Z4 Canada

ISBN: (纸本)9781581134711

aspectJ implementations of the GoF design patterns show modularity improvements in 17 of 23 cases. These improvements are manifested in terms of better code locality, reusability, composability, and (un)pluggability. The degree of improvement in implementation modularity varies, with the greatest improvement coming when the pattern solution structure involves crosscutting of some form, including one object playing multiple roles, many objects playing one role, or an object playing roles in multiple pattern instances.

关键词： design languages design patterns aspect-oriented programming

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Schedulability in model-based software development for distributed real-time systems 7

Schedulability in model-based software development for distr...

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7th IEEE International Workshop on Object-oriented Real-Time Dependable Systems (WORDS 2002)

作者： Yau, SS Zhou, XY Arizona State Univ Dept Comp Sci & Engn Tempe AZ 85287 USA

ISBN: (纸本)0769515762

Schedulability of distributed real-time system has been studied extensively. However, due to the discrepancies the reference model used in scheduling analysis and the object-oriented model, the results cannot be easily used for distributed real-time object-oriented software development. Even if object-oriented models can be used to conduct schedulability analysis successfully, there still lacks an effective approach to validate the implementation with the design. Model-based approach alleviates the discrepancies between models of different stages and the implementation by automatically transforming models at different granularity, until the code generation for the implementation from the generated design. In this paper, an approach to incorporating schedulability analysis reference diagrams into the existing framework for model-based software development will be presented. It will improve the predictability of a distributed real-time system as well as increase the capability of model refinements and code generation using the new reference diagrams and schedulability analysis results to generate code for implementing scheduling and synchronization aspects of the distributed real-time system.

关键词： distributed real-time system end-to-end timing constraint aspect-oriented programming UML for real-time schedulability analysis model-based development

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Integrating independent components with on-demand remodularization 02

Integrating independent components with on-demand remodulari...

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17th Meeting on Object-oriented programming, Systems, Languages and Applications (OOPSLA 2002)

作者： Mezini, M Ostermann, K Tech Univ Darmstadt D-64283 Darmstadt Germany Siemens AG D-81730 Munich Germany

ISBN: (纸本)9781581134711

This paper proposes language concepts that facilitate the separation of an application into independent reusable building blocks and the integration of pre-build generic software components into applications that have been developed by third party vendors. A key element of our approach arc on-demand remodularizations, meaning that the abstractions and vocabulary of an existing code base are translated into the vocabulary understood by a set of components that are connected by a common collaboration interface. This general concept allows us to mix-and-match remodularizations and components on demand.

关键词： design languages on-demand remodularization aspect-oriented programming collaboration-based decomposition

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AOP: Does it make sense? The case of concurrency and failures 16th

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16th European Conference on Object oriented programming (ECOOP 2002)

作者： Kienzle, J Guerraoui, R Swiss Fed Inst Technol Software Engn Lab CH-1015 Lausanne Switzerland Swiss Fed Inst Technol Distributed Programming Lab CH-1015 Lausanne Switzerland

ISBN: (纸本)3540437592

Concurrency and failures are fundamental problems in distributed computing. One likes to think that the mechanisms needed to address these problems can be separated from the rest of the distributed application: in modern words, these mechanisms could be aspectized. Does this however make sense? This paper relates an experience that conveys our initial and indeed biased intuition that the answer is in general no. Except for simple academic examples, it is hard and even potentially dangerous to separate concurrency control and failure management from the actual application. We point out the very facts that (1) an aspect-oriented language can, pretty much like a macro language, be beneficial for code factorization (but should be reserved to experienced programmers), and (2) concurrency and failures are particularly hard to aspectize because they are usually par. of the phenomenon that objects should simulate. They are in this sense different than other concerns, like for instance tracing, which might be easier to aspectize.

关键词： aspect-oriented programming abstracticn objects concurrency failures exceptions transactions

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Integrating independent components with on-demand remodularization

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ACM SIGPLAN NOTICES 2002年第11期37卷 52-67页

作者： Mezini, M Ostermann, K Tech Univ Darmstadt D-64283 Darmstadt Germany Siemens AG D-81730 Munich Germany

关键词： design languages on-demand remodularization aspect-oriented programming collaboration-based decomposition

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Design pattern implementation in Java and aspectJ

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ACM SIGPLAN NOTICES 2002年第11期37卷 161-173页

作者： Hannemann, J Kiczales, G Univ British Columbia Vancouver BC V6T 1Z4 Canada

关键词： design languages design patterns aspect-oriented programming

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Implementing distribution and persistence aspects with aspectJ

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ACM SIGPLAN NOTICES 2002年第11期37卷 174-190页

作者： Soares, S Laureano, E Borba, P Univ Fed Pernambuco Informat Ctr Recife PE Brazil Catholic Univ Pernambuco Informat & Stat Dept Recife PE Brazil

关键词： languages standardization experimentation aspect-oriented programming separation of concerns aspectJ distributed programming object persistence

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aspect and XML-oriented Semantic Framework Generator

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Electronic Notes in Theoretical Computer Science 2002年第3期65卷 97-116页

作者： Didier Parigot Carine Courbis Pascal Degenne Alexandre Fau Claude Pasquier Joël Fillon Christophe Held Isabelle Attali INRIA Sophia-Antipolis - OASIS project 2004 route des Lucioles - BP 93 06902 Sophia-Antipolis cedex France

SmartTools is a semantic framework generator, based on XML and object technologies. Thanks to a process of automatic generation from specifications, SmartTools makes it possible to quickly develop environments dedicated to domain-specific and programming languages. Some of these specifications (XML, DTD, Schemas, XSLT) are issued from the W3C which is an important source of varied emerging domain-specific languages. SmartTools uses object technologies such as visitor patterns and aspect-oriented programming. It provides code generation adapted to the usage of those technologies to support the development of semantic analyses. In this way, we obtain at minimal cost the design and implementation of a modular development platform which is open, interactive, uniform, and most important prone to evolution.

关键词： software generation development environment semantic analyses aspect-oriented programming visitor pattern program transformation XML XSLT

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Implementing distribution and persistence aspects with aspectJ 02

Implementing distribution and persistence aspects with aspec...

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Proceedings of the 17th ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications

作者： Sergio Soares Eduardo Laureano Paulo Borba Federal University of Pernambuco Recife Pernambuco Brazil

ISBN: (纸本)9781581134711

关键词： aspectJ object persistence distributed programming aspect-oriented programming separation of concerns

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