Enterprise Javabeans Component Architecture

This book simplifies the creation of well-designed enterprise applications using the upgraded Enterprise JavaBeans 2.0 specification. Experienced Java platform mentors Gail Anderson and Paul Anderson use detailed code examples to introduce every key skill involved in creating components, stand-alone Java platform clients, and JavaServer pages. They introduce powerful EJB platform design patterns and show how to apply them in real-world projects while avoiding critical errors in application design. Each chapter includes a "Design Guidelines and Patterns" section designed to help readers assess tradeoffs associated with design decisions, and key point summaries that tie together important concepts. In short, Anderson and Anderson give readers everything they need to build EJB 2.0 platform applications with maximum robustness, scalability, and performance.

This title provides advanced, in depth coverage of Enterprise JavaBeans (EJB) applications. It presents the EJB architecture from the point of view of the person developing EJB applications.

Special Edition Using EJB 2.0starts with a description of how EJB fits into the big picture of J2EE development, then covers such topics as: Locating EJB's using JNDI Managing data with EJB Query Language Building JMS applications using the new Message-driven Bean Planning EJB applications using design patterns Later chapters describe advanced development topics including interoperability, horizontal services and clustering. Throughout the book, the authors construct a component-based auction web site using the J2EE architecture as a practical example.

This third edition explains the underlying technology, Java classes and interfaces, component model, and runtime behavior of Enterprise JavaBeans. In addition, the book contains an architecture overview, information on resource management and primary services, design strategies, and XML deployment descriptors.

Enterprise JavaBeans (EJB) is a server-side component model for transaction-aware distributed enterprise applications, written in the Java programming language. Enterprise JavaBeans 2.1 details the architecture of the Enterprise JavaBeans component model.After the authors introduce the component paradigm, they move on to cover EJB architecture basics. Building on the foundation formed in those introductory topics, they discuss the different component types (session-, entity-, and message-driven beans) in detail. This is followed by a comprehensive introduction to the Java Message Service (JMS), so you understand the ideas behind asynchronous and parallel processing provided through message-driven beans. Transactions, security, and the newly introduced timer service round out the book.This invaluable resource also discusses topics beyond the specification: inheritance, coupling of EJB components, quality assurance, and more. After reading this book, you'll understand the benefits and the limits of EJB and have the knowledge necessary to turn business requirements into EJB-based applications.

An invaluable tutorial on the dramatic changes to Enterprise JavaBeans (EJB) 3.0 Featuring myriad changes from its previous versions, EJB 3.0 boasts a very different programming and deployment model, with nearly every aspect of development affected. Even the most experienced EBJ and J2EE developers will need to relearn how to best use EJB to develop mission-critical applications. This author team of experts has taken their combined skills in architecture, development, consulting, and knowledge transfer to explain the various changes to EJB 3.0 as well as the rationale behind these changes. You'll learn the concepts and techniques for authoring distributed, enterprise components in Java from the ground up. Covering basic through advanced subjects, Mastering Enterprise JavaBeans 3.0 is more than 50 percent new and revised. Four new chapters and one new appendix cover the latest features of this new release, and in-depth coverage of the Java Persistence API and the entities defined therein is provided. The authors' main goal is to get you programming with EJB immediately. To that end, you'll learn: * How to implement EJB 3.0 beans, with emphasis on session beans (stateful and stateless) and message-driven beans * Both basic and advanced concepts (such as inheritance, relationships, and so on) of Java Persistence API defined entities * How to develop and deploy EJB 3.0 Web services * How to secure EJB applications * How to integrate EJB applications with the outside world via the Java EE Connector technology * Tips and techniques for designing and deploying EJB for better performance * How clustering in large-scale EJB systems works * Best practices for EJB application design, development, and testing The companion Web site provides all the source code, updates to the source code examples, and a PDF version of the book. Wiley Technology Publishing Timely. Practical. Reliable. Visit the companion Web site at www.wiley.com/go/sriganesh

If you're up on the latest Java technologies, then you know that Enterprise JavaBeans (EJB) 3.0 is the hottest news in Java this year. In fact, EJB 3.0 is being hailed as the new standard of server-side business logic programming. And O'Reilly's award-winning book on EJB has been refreshed just in time to capitalize on the technology's latest rise in popularity. This fifth edition, written by Bill Burke and Richard Monson-Haefel, has been updated to capture the very latest need-to-know Java technologies in the same award-winning fashion that drove the success of the previous four strong-selling editions. Bill Burke, Chief Architect at JBoss, Inc., represents the company on the EJB 3.0 and Java EE 5 specification committees. Richard Monson-Haefel is one of the world's leading experts on Enterprise Java. Enterprise JavaBeans 3.0, 5th Edition is organized into two parts: the technical manuscript followed by the JBoss workbook. The technical manuscript explains what EJB is, how it works, and when to use it. The JBoss workbook provides step-by-step instructions for installing, configuring, and running the examples from the manuscript on the JBoss 4.0 Application Server. Although EJB makes application development much simpler, it's still a complex and ambitious technology that requires a great deal of time to study and master. But now, thanks to Enterprise JavaBeans 3.0, 5th Edition, you can overcome the complexities of EJBs and learn from hundreds of practical examples that are largeenough to test key concepts but small enough to be taken apart and explained in the detail that you need. Now you can harness the complexity of EJB with just a single resource by your side.