AspectJ in Action

513 Pages·2010·15.41 MB·English

www.it-ebooks.info
AspectJ in Action
www.it-ebooks.info
www.it-ebooks.info
AspectJ in Action
PRACTICAL ASPECT-ORIENTED
PROGRAMMING
RAMNIVAS LADDAD
MANNING
Greenwich
(74° w. long.)
www.it-ebooks.info
For online information and ordering of this and other Manning books, go to
www.manning.com. The publisher offers discounts on this book when ordered in quantity.
For more information, please contact:
Special Sales Department
Manning Publications Co.
209 Bruce Park Avenue Fax: [phone]
Greenwich, CT 06830 email: [email protected]
©2003 by Manning Publications Co. All rights reserved.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted,
in any form or by means electronic, mechanical, photocopying, or otherwise, without
prior written permission of the publisher.
Many of the designations used by manufacturers and sellers to distinguish their products
are claimed as trademarks. Where those designations appear in the book, and Manning
Publications was aware of a trademark claim, the designations have been printed in initial
caps or all caps.
Recognizing the importance of preserving what has been written, it is Manning’s policy to
have the books they publish printed on acid-free paper, and we exert our best efforts to that
end.
Manning Publications Co. Copyeditor: Liz Welch
209 Bruce Park Avenue Typesetter: Denis Dalinnik
Greenwich, CT 06830 Cover designer: Leslie Haimes
ISBN 1-930110-93-6
Printed in the United States of America
1 2 3 4 5 6 7 8 9 10 – VHG – 05 04 03 02
www.it-ebooks.info
To my late grandfather, Jodhrajji.
You were always there for me.
www.it-ebooks.info
www.it-ebooks.info
brief contents
PART 1 UNDERSTANDING AOP AND ASPECTJ.............................1
1 ■ Introduction to AOP 3
2 ■ Introducing AspectJ 32
3 ■ AspectJ: syntax basics 64
4 ■ Advanced AspectJ 100
PART 2 BASIC APPLICATIONS OF ASPECTJ................................143
5 ■ Monitoring techniques: logging, tracing,
and profiling 145
6 ■ Policy enforcement: system wide contracts 178
7 ■ Optimization: pooling and caching 202
PART 3 ADVANCED APPLICATIONS OF ASPECTJ......................243
8 ■ Design patterns and idioms 245
9 ■ Implementing thread safety 286
10 ■ Authentication and authorization 323
vii
www.it-ebooks.info
viii BRIEF CONTENTS
11 ■ Transaction management 356
12 ■ Implementing business rules 391
13 ■ The next step 425
A ■ The AspectJ compiler 438
B ■ Understanding Ant integration 447
■ resources 455
■ index 461
www.it-ebooks.info
contents
preface xvii
how real is AspectJ? xix
into the future! xxi
acknowledgments xxiii
about this book xxv
PART 1 UNDERSTANDING AOP AND ASPECTJ...........................1
1 Introduction to AOP 3
1.1 The architect’s dilemma 5
1.2 Evolution of programming methodologies 6
1.3 Managing system concerns 7
Identifying system concerns 8 ■ A one-dimensional
solution 10 ■ It’s all about modularizing 11
1.4 Implementing crosscutting concerns in
nonmodularized systems 14
Symptoms of nonmodularization 15 ■ Implications of
nonmodularization 18 ■ Introducing AOP 19
A bit of history 20 ■ The AOP methodology 21
ix
www.it-ebooks.info