Enterprise JavaBeans(TM): Developing Component-Based Distributed Applications [Paperback]

Thomas B. Valesky (Author)

Book Description

Publication Date: May 1999

Enterprise JavaBeanso facilitates the development of distributed Javao applications, providing an object-oriented transactional environment for building distributed, component-based, multitier enterprise applications. Enterprise JavaBeans is designed to get you up-to-speed quickly, focusing on the exact information you need to become an effective Enterprise JavaBeans programmer. This example-filled book serves as an introduction and tutorial, and provides the in-depth information you need to handle real-world programming challenges. This book presents an overview of the architecture, using a "Hello, world!" Enterprise JavaBeans system to illustrate basic concepts. The book then moves on to cover Session and Entity beans, how to write client programs that use Enterprise JavaBeans, and the packaging and deploying of Enterprise JavaBeans. You will find precise explanations on specific topics such as: *The differences between stateful and stateless beans *The differences between bean-managed and container-managed Entity beans *How to call a bean from a servlet, another bean, or an applet *How to obtain and examine Enterprise JavaBeans metadata *How to identify deployment descriptors and the values they contain *How to use access control lists to set up permissions on an Enterprise JavaBeans server *How a bean can retrieve and test a client's identity In addition, substantial examples and an "implementation diary" demonstrate the implementation process, the available options and tradeoffs, and the rationale behind development choices. A chapter devoted to tips and common pitfalls provides concrete rules of thumb for more effective Enterprise JavaBeans programming. The accompanying CD-ROM includes Enterprise JavaBeans software and examples from the book. Enterprise JavaBeans gives you the background you need to use the system productively in your daily work and puts you on the fast track to mastering Enterprise JavaBeans techniques. 0201604469B04062001

Editorial Reviews

Amazon.com Review

In Tom Valesky's Enterprise JavaBeans, readers find a hands-on tutorial on writing real-world EJBs for the corporate enterprise. Valesky explores the history of distributed computing and the role of EJBs in the world of legacy CORBA and transaction processing. The author's presentation of the architecture of EJBs, both session and entity beans, is just excellent. The book also suggests how EJBs can be used together with RMI and CORBA.

The examples in this book are its best feature. Using WebLogic's application server, the author first presents a simple "Hello world" example. There is also a simple online "shopping cart" example, written with both "stateless" and "stateful" session beans. You'll explore entity beans for connecting to corporate databases, and Valesky updates the shopping cart example to use them.

EJBs are just part of the picture for enterprise development. As a bonus, this book provides a checklist of over 50 useful hints for writing successful distributed systems. The book includes a full-fledged example for an employee time-tracking system built with EJBs, along with full source code for all examples presented in the book. Enterprise JavaBeans is an excellent hands-on guide to real-world EJB development in a book that avoids the high-flown jargon that often appears in books on distributed programming. --Richard Dragan

Review

"The book does an excellent job of placing EJB into the context of middleware and application servers. Even if the reader has little or no experience with multi-tier application development, they will have a good feel for it and for EJB after reading this book." -- Ethan Henry, Java Evangelist, KL Group

"This is a very easy to read tutorial loaded with very illustrative examples. Enterprise JavaBeans provides invaluable information for readers ranging from novices to experts. Tom Valesky does a superb job of addressing the reader in a friendly, informal style. A must buy for serious Java developers." -- Ajit Sagar, Member of Technological Staff, i2 Technologies

"Those who prefer to learn by example will find this gentle introduction to Sun's Enterprise JavaBeans specification a welcome addition to their technical libraries. The casual and unassuming style makes EJB accessible to those just getting started, yet the book also provides the serious developer with real-world examples and coverage of advanced topics." -- Liane Acker, Senior Software Engineer, IBM

"Tom Valesky applies years of experience developing enterprise applications and a solid understanding of Enterprise JavaBeans technology to create a book filled with practical advice. Any developer interested in creating applications with Enterprise JavaBeans will find valuable information here, ranging from general design approaches to specific implementation details." -- Jim Inscore, Technical Publications & Information Design Manager, Sun Microsystems

"Tom Valesky has packed this excellent book with two things: hard core examples laden with code, and understandable expert advice based on real experience. This book is like a GPS device for your boat; as the second wave of EJB sweeps over the enterprise, knowing where you are and where you're going will pay off handsomely. Buy it." -- Gary McGraw, Ph.D., Vice President, Reliable Software Technologies, Co-author of Securing Java: Getting Down to Business with Mobile Code and Java Security: Hostile Applets, Holes, and Antidotes

See all Editorial Reviews

Product Details

• Paperback: 352 pages
• Publisher: Addison-Wesley Professional (May 1999)
• Language: English
• ISBN-10: 0201604469
• ISBN-13: 978-0201604467
• Product Dimensions: 9.1 x 7.2 x 1 inches
• Shipping Weight: 1.3 pounds
• Average Customer Review: 3.4 out of 5 stars  See all reviews (28 customer reviews)
• Amazon Best Sellers Rank: #4,003,752 in Books (See Top 100 in Books)

Customer Reviews

Most Helpful Customer Reviews

13 of 13 people found the following review helpful:

5.0 out of 5 stars This is the best EJB book I've read so far..., October 2, 1999

By A Customer

This review is from: Enterprise JavaBeans(TM): Developing Component-Based Distributed Applications (Paperback)

And I've read three. Unlike the critics who gave this book one or two stars, I had no problems understanding Mr. Valesky's code and applying them to my applications. While I admit I had problems compiling and running EJB code at first, they had more to do with learning the EJB environment for the first time.

I also really liked the book's fast paced nature and its conciseness. For example, the Monson-Haefel book goes through six pages and five diagrams to explain the four transaction isolation levels. A little too much, really. Meanwhile, Valesky sums it up in half a page with a clearer explanation.

The readers who gave this book a one or two remind me of the same ones who excoriated Horstman & Cornell's Core Java book. That is, this book is probably too tough for them or they're too inexperienced with J2EE or Java to appreciate the quality of this book.

While I generally prefer O'Reilly books and am eagerly looking forward to their Enterprise Java in a Nutshell, I decided to NOT buy Monson-Haefel's book because while it was heavy on theory, it was extremely light on the code examples. In fact, while the code was simple (too simple to use), I would hardly call it scalable or best-practices.

And real lightweights should check out Jubin's book, which is light on content and code.

I don't recommend Valesky's book for everyone. But if you want concise information delivered with 'industrial strength' code, buy this book. Hell, the free WebLogic on the CD-ROM is reason enough.

6 of 6 people found the following review helpful:

2.0 out of 5 stars Caveat Emptor, May 15, 2000

By 

Michael Sweeney - See all my reviews

This review is from: Enterprise JavaBeans(TM): Developing Component-Based Distributed Applications (Paperback)

1) The included weblogic software has expired . The downloadable replacement is for NT only. 2) The promised on-line supplement to the book contains a 3-line apology from the author. 3)Several patches are needed. Most of the examples in the book will not compile.

8 of 9 people found the following review helpful:

5.0 out of 5 stars Intermediate level EJB book., December 29, 1999

By 

Mario de Sa Vera - See all my reviews

This review is from: Enterprise JavaBeans(TM): Developing Component-Based Distributed Applications (Paperback)

I bought Mr. Valesky book after O'reilly EJB book and I can't compare both because Mr. Valesky book should be considered a beginner's to intermediate level book while O'reilly is definitely a good introduction to EJB. Mr.Valesky book goes way beyond with more serious examples and the book comes with Weblogic ... it's a must !