aspect-oriented programming

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aspect-oriented programming

(programming)
(AOP) A style of programming that attempts to abstract out features common to many parts of the code beyond simple functional modules and thereby improve the quality of software.

Mechanisms for defining and composing abstractions are essential elements of programming languages. The design style supported by the abstraction mechanisms of most current languages is one of breaking a system down into parameterised components that can be called upon to perform a function.

But many systems have properties that don't necessarily align with the system's functional components, such as failure handling, persistence, communication, replication, coordination, memory management, or real-time constraints, and tend to cut across groups of functional components.

While they can be thought about and analysed relatively separately from the basic functionality, programming them using current component-oriented languages tends to result in these aspects being spread throughout the code. The source code becomes a tangled mess of instructions for different purposes.

This "tangling" phenomenon is at the heart of much needless complexity in existing software systems. A number of researchers have begun working on approaches to this problem that allow programmers to express each of a system's aspects of concern in a separate and natural form, and then automatically combine those separate descriptions into a final executable form. These approaches have been called aspect-oriented programming.

Xerox AOP homepage.

AspectJ.

ECOOPP'99 AOP workshop.
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References in periodicals archive ?
The evolution of Aspect oriented (AO) software would degrade and modify its structure and its modularity.
In this paper, we demonstrate the benefits of using the aspect oriented programming paradigm in discrete event simulation by discussing various precedent works and identifying the main crosscutting concerns that may affect the functional core of simulation systems.
Introducing aspect oriented technology in the development of reflective based adaptive system can address the issue of localization [8].
UML Extensions for Aspect Oriented Software Development," Journal of Object Technology, vol.
In the latest release, the Prism environment has added Aspect Oriented Programming (AOP), which takes Object Oriented Programming to the next level.
Mendhekar began his career at Xerox's Palo Alto Research centre, where he was one of the inventors of Aspect Oriented Programming, a rapidly spreading paradigm of programming that forms the core of products produced by his current firm, Blue Vector Systems.
A section is also devoted to Aspect Oriented Programming and the mew methods that are being used to determine which tests cases are impacted and need to be rewritten.
Abstract: The paper offers graphic and aspect oriented model of application generators based on scripting languages.
JBoss developers will this year tackle improvements to the core application server, aspect oriented programming and the JbossCache, which was announced last December.
Language and compiler enhancements include new background compilation for Delphi and C++Builder, Attributes and RTTI (Run-Time Type Information) for the Delphi language, new draft C++0x language support and updated Boost, STL and TR1 libraries in C++Builder; and Aspect Oriented Programming (AOP) in Delphi Prism.