Spring 2.5 Aspect Oriented Programming

332 Pages·2009·8.26 MB·English

by  Massimiliano Dessì

Spring 2.5 Aspect-Oriented
Programming
Create dynamic, feature-rich, and robust enterprise
applications using the Spring framework
Massimiliano Dessì

BIRMINGHAM - MUMBAI
This material is copyright and is licensed for the sole use by Richard Ostheimer on 6th June 2009
2205 hilda ave., , missoula, , 59801
Spring 2.5 Aspect-Oriented Programming
Copyright © 2009 Packt Publishing
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First published: February 2009
Production Reference: 1170209
Published by Packt Publishing Ltd.
32 Lincoln Road
Olton
Birmingham, B27 6PA, UK.
ISBN 978-1-847194-02-2
www.packtpub.com
Cover Image by Parag Kadam ([e-mail])
This material is copyright and is licensed for the sole use by Richard Ostheimer on 6th June 2009
2205 hilda ave., , missoula, , 59801
Credits
Author Project Manager
Massimiliano Dessì Abhijeet Deobhakta
Reviewer Project Coordinator
Stefano Sanna Neelkanth Mehta
Acquisition Editor Indexer
Rashmi Phadnis Rekha Nair
Development Editor Proofreader
Dhiraj Chandiramani Chris Smith
Technical Editor Production Coordinator
Abhinav Prasoon Aparna Bhagat
Copy Editor Cover Designer
Sneha Kulkarni Aparna Bhagat
Editorial Team Leader
Akshara Aware
This material is copyright and is licensed for the sole use by Richard Ostheimer on 6th June 2009
2205 hilda ave., , missoula, , 59801
About the Author
Massimiliano Dessì iiss aann eexxppeerriieenncceedd ��aavvaa ddeevveellooppeerr wwhhoo ssttaarrtteedd ddeevveellooppiinngg ��EEEE
applications in 2000. In 2004 he discovered the Spring Framework 1.0, and since then
he has been one of its most enthusiastic users.
Massimiliano is specialized in design and development of enterprise Web-based
applications, such as portals, content management systems and banking applications.
�EE technology and applied agile methodologies like eXtreme Programming are his
core skills. He currently works as a Software Architect and Engineer for Sourcesense
(www.sourcesense.com), one of the leading European Open Source System
Integrators. He have a strong background as a community supporter and open-
source software contributor. He's also an active technical writer, author of various
articles, publications, and reviews availables on http://www.jugsardegna.org/
vqwiki/jsp/Wiki?MassimilianoDessi and on http://wiki.java.net/bin/
view/People/MassimilianoDessi.
Massimiliano also speaks regurarly at Users Groups conferences (including �ava
Users Groups, Spring Framework User Group, �avaday, and Linux Users Groups).
He is one of the founders of �ava User Group Sardinia (http://www.jugsardegna.
org), as well as the founder of "Spring Framework Italian User Group", "�etspeed
Italian user Group" and "Groovy Italian User Group".
He maintains a personal weblog at: http://jroller.com/page/desmax.
Massimiliano lives in Cagliari, Sardinia with his family.
This material is copyright and is licensed for the sole use by Richard Ostheimer on 6th June 2009
2205 hilda ave., , missoula, , 59801
About the Reviewer
Stefano Sanna is senior engineer and �ava ME Tech Lead at Beeweeb Technologies
(Rome), where his activities are focused on mobile multimedia applications (�ME,
iPhone, Android). His experience on �ava for mobile devices began in 1999 on a
Psion handheld computer. He is author of the Italian book "�ava Micro Edition",
targeted on developing network-oriented applications for mobile phones and
published by Hoepli (Nov 2007). He has written more than 50 technical articles on
�ava ME, mobile technologies, and Linux. He has presented more than 30 seminars
on the same topics, including Sun SPOTs and Arduino sensor networks. Stefano
supports some Italian communities: �UG Sardegna, �ava Mobile Developers Forum,
and �ava Italian Association. Before joining Beeweeb, he was a software engineer at
CRS4 (Sardinia) in the Network Distributed Applications group, where he worked
on multimodal applications and mobile cartography. He regularly writes about
mobile computing, �ava, embedded systems, and good Italian food on his blog:
http://www.gerdavax.it.
This material is copyright and is licensed for the sole use by Richard Ostheimer on 6th June 2009
2205 hilda ave., , missoula, , 59801
This material is copyright and is licensed for the sole use by Richard Ostheimer on 6th June 2009
2205 hilda ave., , missoula, , 59801
This book is dedicated to my wife Monica and my children Michele, Mattia and Chiara
This material is copyright and is licensed for the sole use by Richard Ostheimer on 6th June 2009
2205 hilda ave., , missoula, , 59801
This material is copyright and is licensed for the sole use by Richard Ostheimer on 6th June 2009
2205 hilda ave., , missoula, , 59801
Table of Contents
Preface 1
Chapter 1: Understanding AOP Concepts 7
Limits of object-oriented programming 8
Code scattering 13
Code tangling 14
The AOP solution 16
What Spring provides in terms of AOP 19
Programmatic way 20
Before advice 20
After returning advice 21
Around advice 23
After throwing advice 24
The old Spring XML way 26
AOP with IoC in Spring 2.5 28
AspectJ annotations 28
Before advice 29
After returning advice 30
Around advice 31
After (finally) advice 32
After throwing advice 33
Schema-based configuration 35
Before advice 35
After advice 36
After returning advice 37
After throwing advice 37
Around advice 39
Summary 40
Chapter 2: Spring AOP Components 41
Aspect 41
Pointcut 41
This material is copyright and is licensed for the sole use by Richard Ostheimer on 6th June 2009
2205 hilda ave., , missoula, , 59801