An introduction to and history of aspect-oriented programming. A short overview of AspectJ, certain challenges such as the state-point separation problem, and how explicit join points (EJPs) help mitigate these problems.

1. Why you should get excited
about AOP and AspectJ
(or not)
Kevin Hoffman

2. AOP

3. Cross-cutting Concerns
(Thanks to AspectJ Dev Tools (AJDT) Visualization Eclipse Perspective)

4. Cross-cutting Concerns
(Thanks to AspectJ Dev Tools (AJDT) Visualization Eclipse Perspective)

5. Aspect-Oriented Programming
 Make cross-cutting concerns:
Separated from the ―base code‖
 No coupling between base code / cross-cutting concerns
 Aim for lexical and semantic separation
Modular
 Domain experts write the ―hard stuff‖ once