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4 Introduction to Aspect-Oriented Programming with AspectJ

Sunday, 26 October – 8:30-12:00 Morning

Erik Hilsdale, PARC, hilsdale@parc.com
Jim Hugunin, PARC, hugunin@parc.com

AspectJ is a seamless, aspect-oriented extension to Java™. It can be used to cleanly modularize the crosscutting structure of concerns such as exception handling, multi-object protocols, synchronization, performance optimizations, and resource sharing.

When implemented in a non-aspect-oriented fashion, the code for these concerns typically becomes spread out across the program. AspectJ controls such code-tangling and makes the underlying concerns more apparent, making programs easier to develop and maintain.

This tutorial will introduce Aspect-oriented programming and show how to use AspectJ to implement crosscutting concerns in a concise, modular way. We will also demonstrate and use AspectJ's integration with IDEs such as JBuilder, NetBeans, Emacs, and Eclipse, in addition to the core AspectJ tools.

AspectJ is freely available at http://eclipse.org/aspectj.

Attendee background

Prerequisites: Attendees should have experience doing object-oriented design and implementation, and should be able to read and write Java code. No prior experience with aspect-oriented programming or AspectJ is required.


Lecture and demonstration


Erik Hilsdale is a researcher at the Palo Alto Research Center. As a member of the AspectJ team, he concentrated on language design, pedagogy and compiler implementation. He has written several conference and workshop publications in programming languages. He is an experienced and energetic instructor in programming languages and has much background in AspectJ.

Jim Hugunin is a researcher at the Palo Alto Research Center. He built the first Java-based AspectJ compiler and led the subsequent implementation work up to a 1.1 release of the compiler and core tools. He also played a major role in the design of the AspectJ language. Prior to joining the AspectJ team he designed and implemented JPython/Jython, a widely used implementation of the Python language for the Java platform.