Enterprise JavaBeans (3rd Edition) - Softcover

Monson-Haefel, Richard

Softcover

ISBN 10: 0596002262 ISBN 13: 9780596002268

Publisher: Lakai Limited Footwear, 2001

Synopsis

Enterprise JavaBeans was recently voted "Best Java Book" by the editors and readers of Java Developer's Journal. Readers of JavaPro named it the "Best Java Book for Experts." And Amazon.com included it in the Top Computer Books for 2000. Now the best only gets better! In the new 3rd edition, Enterprise JavaBeans has been completely revised and updated with a thorough introduction to the new 2.0 version of the EJB specification. Significantly different from the earlier version, the 2.0 specification introduces three dramatic improvements: A completely new version of container-managed persistence; local interfaces; and a totally new kind of bean called the "message driven bean."The new version of container-managed persistence (CMP) beans in 2.0 is more portable and robust than in the older 1.1 version. Most significant is the introduction of the relationship fields, which allow entity beans to declare relationships with each other as natural references. In order to make this huge leap in component relationships possible, EJB 2.0 had to redesign how entity beans are defined and interact. Our new 3rd edition examines this critical CMP model in detail.Local interfaces are thoroughly discussed as well. Local interfaces allow beans that are co-located to interact without the overhead of remote method calls. This improves the performance of beans considerably and complements the CMP relationship fields.Message driven beans are a new kind of enterprise bean based on asynchronous messaging and the Java Message service (JMS). Instead of responding to Java RMI calls, message driven beans process JMS messages sent by messaging clients. An entire chapter is devoted to message-driven beans and how to use them effectively.In addition, the 3rd edition contains an architecture overview, information on resource management and primary services, design strategies, and XML deployment descriptors.

About this title

Review

Thoroughly enhanced for the EJB 1.1 specification, Enterprise JavaBeans, 2nd Edition provides a great introduction to the world of server-side Java components. With plenty of material on EJB architecture and design, this new edition can serve as an authoritative resource for mastering today's bean standards.

Besides a general introduction to EJBs, the new edition of this book excels at highlighting the differences between the EJB 1.0 and 1.1 standards. Sample code is provided for both versions. For deployment, EJB 1.1 now relies on XML to define all bean resources and dependencies. For every sample bean, the author provides the XML, as well as the old-style Java code for EJB 1.0. There's also plenty of coverage of the new reliance on JNDI (the Java directory service) in EJB 1.1 and other late-breaking Sun standards, such as combining EJBs with servlets and JSPs for delivering dynamic Web content.

This text is organized as a tutorial to the major types of EJBs with full coverage of entity beans (for accessing databases) and session beans (for managing "conversations" with particular clients). The author covers all the bases here with numerous diagrams describing the life cycle of beans and how they cooperate with today's application servers. As in the first edition, sample beans for a cruise ship booking application let you see actual EJB code in action. Helpful appendices list all EJB APIs and other useful information (such as a list of current EJB vendors).

In all, the revised edition of Enterprise JavaBeans shows off the considerable strengths of the new EJB 1.1 standard. Suitable for any working Java programmer or IT manager, the clear presentation of the strategies and techniques for successful component design help make this book a smart choice for successful development with EJBs. --Richard Dragan

Topics covered: Overview of Enterprise JavaBeans (EJBs) v. 1.1 and 1.0, distributed objects, Component Transaction Monitors (CTMs), application servers and EJBs, resource management, EJB server setup, entity beans, session beans and workflow, the JNDI naming service, the life cycle of beans, container-managed and bean-managed persistence for entity beans, stateful and stateless session beans, deploying beans in JAR files (EJB 1.1 and 1.0 conventions), XML deployment descriptors, transaction basics (ACID properties and JTS), EJB security, design strategies and performance tips for EJBs, Java 2 Enterprise Edition (J2EE) and EJBs, servlets and JSPs used with EJBs, sample beans, state and sequence diagrams for EJBs, and EJB API reference.

From the Author

Dear Reader,

This book is has complete coverage of EJB 2.0. The book also covers EJB 1.1, for readers still using legacy servers.

Over three years have gone into refining the content this book to ensure that it was technically accurate and a pleasure to read. Delivering content that meets these standards isn't easy, and while my name is on the cover, credit is shared with many people.

In addition to this book, we are making companion workbooks available that show how to download, install, and configure different servers so that you can run the books examples on different EJB products. Workbooks and example code are available for free download from OReilly.com for WebLogic 6.1, WebSphere 4.0 and other products.

Thank you for considering my book, Enterprise JavaBeans, 3rd Edition, and good luck in your career as a distributed object professional. It's an exciting field with unlimited challenges and rewards.

Yours truly,

Richard Monson-Haefel Author of Enterprise JavaBeans, 3rd Edition (O'Reilly 2001) Co-Author of Java Message Service (O'Reilly 2000)

Edition details

• Publisher: Lakai Limited Footwear
• Publication date: 2001
• ISBN 10: 0596002262
• ISBN 13: 9780596002268
• Binding: Paperback
• Language: English
• Number of pages: 567