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AspectJ™ is a simple and practical aspect-oriented extension to Java™. With just a few new constructs, AspectJ provides support for modular implementation of a range of crosscutting concerns. In AspectJ's dynamic join point model, join points are well-defined points in the execution of the program; pointcuts are collections of join points; advice are(More)
59 M Many software developers are attracted to the idea of AOP—they recognize the concept of crosscutting concerns and know they have had problems with the implementation of such concerns in the past. But they have questions about how to adopt AOP into their development process, including: How to use aspects in existing code? What kinds of benefits can be(More)
This paper describes the implementation of advice weaving in AspectJ. The AspectJ language picks out dynamic join points in a program's execution with pointcuts and uses advice to change the behavior at those join points. The core task of AspectJ's advice weaver is to statically transform a program so that at runtime it will behave according to the AspeetJ(More)
The Scheme programming language has a standard mechanism for syntactic extension that is little used because it is perceived to have not enough expressive p o wer. While there are useful transformations the standard mechanism cannot do, it is possible to create powerful and portable syntactic extensions by writing syntax transformers in a(More)
1 Introduction AspectJ is an aspect-oriented extension to JAVA program language. It enables a different way to further and cleaner modularize all concerns of interest in a complex systems comparing with the object-oriented mechanism. The AOP approach has a number of benefits. First, it improves performance because the operations are more succinct. Second,(More)
Most of the existing literature about monadic programming focuses on theory but does not address issues of software engineering. Using monadic parsing as a running example, we demonstrate monadic programs written in a typical style, recognize how they violate abstraction boundaries, and recover clean abstraction crossings through monadic reflection. Once(More)
Implementing any big software system is a complex task. One of the major reasons for this is that, there one would like to modularize but for which the implementation would be spread out. Such concerns are more commonly known as Aspects. For example security aspect has to be taken care irrespective of the fact, whatever business logic is being implemented.(More)
Description Dynamic analysis of software systems requires the instrumentation of application programs with functionality to measure events of interest that occur during program execution, e.g., method calls, runtime exceptions, and variable accesses. For modern programming languages that are executed by virtual machines (Java, .NET, etc.), instrumentation(More)
Complex systems usually contain design units that are logically related to several objects in the system. Some examples include: tracing, propagation of interrupts, multi-object protocols, security enforcement etc. This crosscutting between those design units and the objects is a natural phenomenon. But, using traditional implementation techniques, the(More)
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