aspect-oriented programming – AOP

Aspect-oriented programming (AOP) complements object-oriented programming by allowing the developer to dynamically modify the static object-oriented model to create a system that can grow to meet new requirements, allowing an application to adopt new characteristics as it develops.

AOP provides a solution for abstracting cross-cutting code that spans object hierarchies without functional relevance to the code it spans. Instead of embedding cross-cutting code in classes, AOP allows developers to abstract the cross-cutting code into a separate module (known as an aspect) and then apply the code dynamically where it is needed. Developers achieve dynamic application of the cross-cutting code by defining specific places (known as pointcuts) in the object model where cross-cutting code should be applied. At runtime or compile time, depending on the AOP framework, cross-cutting code is injected at the specified pointcuts.

Essentially, AOP allows you to introduce new functionality into objects without the objects’ needing to have any knowledge of that introduction.

Vangie Beal
Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

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