In a November 2001 Java Pro magazine article, noted Java pundit Daniel Savarese states, "The days of Object-Oriented Programming may be numbered, One day we may all be using Aspect-Oriented Programming ." While this may be hyperbole, the AOP bring certain needed improvements to the OOP. AspectJ is a Java-based tool that allows developers to apply standard Java syntax to AOP principles, much as C++ allowed C programmers to use C syntax in an object-oriented manner. There are AspectJ add-ons available for Borland's JBuilder, Sun's Forte for Java and for the EMACS text editor. "Aspect-Oriented Programming with AspectJ" introduces AOP and the AspectJ tool. The book also shows how, by using existing Java programming knowledge, the developer can use AOP in meaningful development work.
A practical guide to AOP and AspectJ. The re-usable code examples should enable quick implementation and the use of Java as the base language makes AspectJ a relatively easy language to learn. The book is divided into three parts: introduction, examples and everyday situations in which to use.
To allow the creation of truly modular software, OOP has evolved into aspect-oriented programming. AspectJ is a mature AOP implementation for Java, now integrated with Spring. AspectJ in Action, Second Edition is a fully updated, major revision of Ramnivas Laddad's best-selling first edition. It's a hands-on guide for Java developers. After introducing the core principles of AOP, it shows you how to create reusable solutions using AspectJ 6 and Spring 3. You'll master key features including annotation-based syntax, load-time weaver, annotation-based crosscutting, and Spring-AspectJ integration. Building on familiar technologies such as JDBC, Hibernate, JPA, Spring Security, Spring MVC, and Swing, you'll apply AOP to common problems encountered in enterprise applications. This book requires no previous experience in AOP and AspectJ, but it assumes you're familiar with OOP, Java, and the basics of Spring. "Clear, concisely worded, well-organized ... a pleasure to read." -From the Foreword by Rod Johnson, Creator of the Spring Framework "This book teaches you how to think in aspects. It is essential reading for both beginners who know nothing about AOP and experts who think they know it all." - Andrew Eisenberg, AspectJ Development Tools Project Committer "Ramnivas showcases how to get the best out of AspectJ and Spring." -Andy Clement, AspectJ Project Lead "One of the best Java books in years." -Andrew Rhine, Software Engineer, eSecLending "By far the best reference for Spring AOP and AspectJ." -Paul Benedict, Software Engineer, Argus Health Systems "Ramnivas expertly demystifies the awesome power of aspect-oriented programming." -Craig Walls, author of Spring in Action
When Object Oriented programming (OO) first appeared, it was a revelation. OO gave developers the ability to create software that was more flexible and robust, but as time went on and applications became more sophisticated, too, certain areas of "traditional" OO architectures were found wanting. Aspect-oriented programming (AOP) addresses those issues by extending the OO approach even further.Many developers are interested in AOP--especially in AspectJ, the open source extension of the Java programming language that explicitly supports the AOP approach. Yet, although AspectJ is included with Eclipse, the increasingly popular open source IDE for Java, finding a practical and non-theoretical way to learn this language and other AOP tools and techniques has been a real problem.Until now. The AspectJ Cookbook offers a hands-on solution--in fact, several--with a wide variety of code recipes for solving day-to-day design and coding problems using AOP's unique approach.AOP allows the global properties of a program to determine how it's compiled into an executable program. Before AOP, important program design decisions were difficult to capture in actual code. Instead, the implementation of those design decisions--known as "aspects"--were scattered throughout, resulting in "tangled" code that was hard to develop and maintain. AOP has been compared to the manufacturing of cloth, in which threads are automatically interwoven. Without AOP, programmers must stitch the threads by hand.The AspectJ Cookbook shows readers why, and how, common Java development problems can be solved by using AOP techniques. With our popular problem-solution-discussion format, the book presents real world examples to demonstrate that AOP is more than just a concept; it's a development process that will benefit users in an immediate and visible manner.If you're interested in how AOP is changing the way software is developed, and how you can use AspectJ to make code more modular, easier to develop, maintain, evolve and deploy, this is the book that really delivers.
* The concepts of AOP are presented independently of any particular implementation * The book covers all 4 major existing tools for AOP: AspectJ, JBoss AOP, AspectWerkz, JAC * The book covers the implementation of a technical aspect based on the Hibernate object/relational persistence framework, a J2EE application implemented with AspectJ, and applications of AOP in the domains of programming by contracts, program testing, and application management
"A refreshingly new approach toward improving use-case modeling by fortifying it with aspect orientation." --Ramnivas Laddad, author of AspectJ in Action "Since the 1980s, use cases have been a way to bring users into software design, but translating use cases into software has been an art, at best, because user goods often don''t respect code boundaries. Now that aspect-oriented programming (AOP) can express crosscutting concerns directly in code, the man who developed use cases has proposed step-by-step methods for recognizing crosscutting concerns in use cases and writing the code in separate modules. If these methods are at all fruitful in your design and development practice, they will make a big difference in software quality for developers and users alike. --Wes Isberg, AspectJ team member"This book not only provides ideas and examples of what aspect-oriented software development is but how it can be utilized in a real development project." --MichaelWard, ThoughtWorks, Inc."No system has ever been designed from scratch perfectly; every system is composed of features layered in top of features that accumulate over time. Conventional design techniques do not handle this well, and over time the integrity of most systems degrades as a result. For the first time, here is a set of techniques that facilitates composition of behavior that not only allows systems to be defined in terms of layered functionality but composition is at the very heart of the approach. This book is an important advance in modern methodology and is certain to influence the direction of software engineering in the next decade, just as Object-Oriented Software Engineering influenced the last." --Kurt Bittner, IBM Corporation"Use cases are an excellent means to capture system requirements and drive a user-centric view of system development and testing. This book offers a comprehensive guide on explicit use-case-driven development from early requirements modeling to design and implementation. It provides a simple yet rich set of guidelines to realize use-case models using aspect-oriented design and programming. It is a valuable resource to researchers and practitioners alike." --Dr. Awais Rashid, Lancaster University, U.K., and author of Aspect-Oriented Database Systems "AOSD is important technology that will help developers produce better systems. Unfortunately, it has not been obvious how to integrate AOSD across a project''s lifecycle. This book shatters that barrier, providing concrete examples on how to use AOSD from requirements analysis through testing." --Charles B. Haley, research fellow, The Open University, U.K. Aspect-oriented programming (AOP) is a revolutionary new way to think about software engineering. AOP was introduced to address crosscutting concerns such as security, logging, persistence, debugging, tracing, distribution, performance monitoring, and exception handling in a more effective manner. Unlike conventional development techniques, which scatter the implementation of each concern into multiple classes, aspect-oriented programming localizes them. Aspect-oriented software development (AOSD) uses this approach to create a better modularity for functional and nonfunctional requirements, platform specifics, and more, allowing you to build more understandable systems that are easier to configure and extend to meet the evolving needs of stakeholders. In this highly anticipated new book, Ivar Jacobson and Pan-Wei Ng demonstrate how to apply use cases--a mature and systematic approach to focusing on stakeholder concerns--and aspect-orientation in building robust and extensible systems. Throughout the book, the authors employ a single, real-world example of a hotel management information system to make the described theories and practices concrete and understandable. The authors show how to identify, design, implement, test, and refactor use-case modules, as well as extend them. They also demonstrate how to design use-case modules with the Unified Modeling Language (UML)--emphasizing enhancements made in UML 2.0--and how to achieve use-case modularity using aspect technologies, notably AspectJ. Key topics include Making the case for use cases and aspects Capturing and modeling concerns with use cases Keeping concerns separate with use-case modules Modeling use-cases slices and aspects using the newest extensions to the UML notation Applying use cases and aspects in projects Whatever your level of experience with aspect-oriented programming, Aspect-Oriented Software Development with Use Cases will teach you how to develop better software by embracing the paradigm shift to AOSD.
Gives experienced Java developers the tools to exploit aspect-oriented programming techniques using AspectJ, an open source Java extension Delivers a code-intensive, real-world tutorial on building applications with AspectJ Covers the AspectJ compiler and browser as well as the IDE plug-ins and other tools that can be used with AspectJ Masterfully ties together all material in the book so that readers will be able to build a complete, working application Companion Web site includes all sample code, the complete application, and links to other relevant sites
At the time of writing (mid-October 1998) we can look back at what has been a very successful ECOOP’98. Despite the time of the year – in the middle of what is traditionally regarded as a holiday period – ECOOP'98 was a record breaker in terms of number of participants. Over 700 persons found their way to the campus of the Brussels Free University to participate in a wide range of activities. This 3rd ECOOP workshop reader reports on many of these activities. It contains a careful selection of the input and a cautious summary of the outcome for the numerous discussions that happened during the workshops, demonstrations and posters. As such, this book serves as an excellent snapshot of the state of the art in the field of object oriented programming. About the diversity of the submissions A workshop reader is, by its very nature, quite diverse in the topics covered as well as in the form of its contributions. This reader is not an exception to this rule: as editors we have given the respective organizers much freedom in their choice of presentation because we feel form follows content. This explains the diversity in the types of reports as well as in their lay out.
