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Enterprise JavaBeans, 3rd Edition (For the 4th Edition, please refer to the ISBN: 059600530X)

by: Richard Monson-Haefel

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On-line Price: $71.95 (includes GST)

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This item is available to backorder. Usually ships within 7 - 10 working days

Retail Price: $89.95

Publisher: O'REILLY,September 2001

Category: JAVA Level: I/A

ISBN: 0596002262
ISBN13: 9780596002268

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Enterprise JavaBeans 3rd edition has been thoroughly revised to include complete coverage of three major changes in the EJB 2.0 specification: A new version of container-managed persistence; local interfaces; and a totally new kind of bean called the 'message driven bean.' The 3rd edition also contains an architecture overview, information on resource management and primary services, design strategies, and XML deployment descriptors.


  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.


  

Table of Contents

Preface


  1. Introduction


          Setting the Stage


          Enterprise JavaBeans Defined


          Distributed Object Architectures


          Component Models


          Component Transaction Monitors


          CTMs and Server-Side Component Models


          Titan Cruises: An Imaginary Business


          What's Next?


  2. Architectural Overview


          The Enterprise Bean Component


          Using Enterprise Beans


          The Bean-Container Contract


          Summary


  3. Resource Management and the Primary Services


          Resource Management


          Primary Services


          What's Next?


  4. Developing Your First Enterprise Beans


          Choosing and Setting Up an EJB Server


          Developing an Entity Bean


          Developing a Session Bean


  5. The Client View


          Locating Beans with JNDI


          The Remote Client API


          EJB 2.0: The Local Client API


  6. EJB 2.0 CMP: Basic Persistence


          Overview


          The Customer EJB


          Persistence Fields


          Dependent Value Classes


          Relationship Fields


  7. EJB 2.0 CMP: Entity Relationships


          The Seven Relationship Types


  8. EJB 2.0 CMP: EJB QL


          Declaring EJB QL


          The Query Methods


          EJB QL Examples


          Problems with EJB QL


  9. EJB 1.1 CMP


          A Note for EJB 2.0 Readers


          Overview for EJB 1.1 Readers


          Container-Managed Persistence


  10. Bean-Managed Persistence


          The Remote Interface


          The Remote Home Interface


          The Primary Key


          The ShipBean


          Obtaining a Resource Connection


          Exception Handling


          The ejbCreate(

) Method


          The ejbLoad(

) and ejbStore(

) Methods


          The ejbRemove(

) Method


          The ejbFind(

) Methods


          The Deployment Descriptor


  11. The Entity-Container Contract


          The Primary Key


          The Callback Methods


          EJB 2.0: ejbHome(

)


          EntityContext


          The Life Cycle of an Entity Bean


  12. Session Beans


          The Stateless Session Bean


          The Life Cycle of a Stateless Session Bean


          The Stateful Session Bean


          The Life Cycle of a Stateful Session Bean


  13. Message-Driven Beans


          JMS as a Resource


          Message-Driven Beans


  14. Transactions


          ACID Transactions


          Declarative Transaction Management


          Isolation and Database Locking


          Nontransactional Beans


          Explicit Transaction Management


          Exceptions and Transactions


          Transactional Stateful Session Beans


  15. Design Strategies


          Hash Codes in Compound Primary Keys


          Passing Objects by Value


          Improved Performance with

Session

Beans


          Bean Adapters


          Implementing a Common Interface


          Entity Beans Without Create Methods


          EJB 1.1: Object-to-Relational Mapping Tools


          Avoid Emulating Entity Beans with Session Beans


          Direct Database Access from Session Beans


          Avoid Chaining Stateful Session Beans


  16. XML Deployment Descriptors


          What Is an XML Deployment Descriptor?


          The Contents of a Deployment Descriptor


          The Document Header


          The Descriptor's Body


          Describing Enterprise Beans


          EJB 2.0: Describing Relationships


          Describing Bean Assembly


          The ejb-jar File


  17. Java 2, Enterprise Edition


          Servlets


          JavaServer Pages


          Web Components and EJB


          J2EE Fills in the Gaps


          Fitting the Pieces Together


          Future Enhancements


  A. The Enterprise JavaBeans API


  B. State and Sequence Diagrams


  C. EJB Vendors


  Index