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Books : Computing & Internet : Web Development : Web Scripting & Programming : Java : JavaBeans
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As many Java developers and IS managers already know, Sun's powerful Enterprise JavaBean (EJB) technology offers an attractive option for developing server-side components. A suitable read for both managers and Java programmers, Enterprise JavaBeans provides a surprisingly clear and engaging introduction to designing and programming with EJBs.The tour of the EJB component model presented here centres on several beans created and tested for a travel reservation system in a fictitious cruise ship company. The samples are just right in scale, large enough to test out key concepts in design and deployment, but small enough to be comprehensible, even to those who are not Java experts. The author pays good attention to the real-world issues of deployment with EJBs (as well as the differences between vendors application servers which run them).
While there are enough details in Java syntax for designing both entity and session beans for the developer, sections on design here will please those who manage projects without delving much into code. Later, the author shows off choices for designing entity and session beans. (For instance, entity beans can allow their "bean containers" to handle the details of connecting to a database, or they can do it themselves. This book demonstrates both approaches.) When it comes to session beans (which "wire" together entity beans to do real work), the author's introduction to managing state and transactions is also a stand-out. Tips for performance and reusability close out the book.
In all, Enterprise JavaBeans provides an engaging tour of one of the most promising component technologies. It's technically astute, but thoroughly approachable too, and can serve the needs of any manager or Java developer considering EJBs for future projects. --Richard Dragan, Amazon.com
Topics covered: Enterprise JavaBeans (EJBs) basics, distributed architectures, Component Transaction Monitors (CTM's), bean-containers, home and remote bean interfaces, resource management, configuring EJB servers, entity beans, JNDI, container-managed and bean-managed persistence, session beans, stateless and stateful beans, transactions, design and performance hints.
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As many Java developers and IS managers already know, Sun's powerful Enterprise JavaBean (EJB) technology offers an attractive option for developing server-side components. A suitable read for both managers and Java programmers, Enterprise JavaBeans provides a surprisingly clear and engaging introduction to designing and programming with EJBs.The tour of the EJB component model presented here centres on several beans created and tested for a travel reservation system in a fictitious cruise ship company. The samples are just right in scale, large enough to test out key concepts in design and deployment, but small enough to be comprehensible, even to those who are not Java experts. The author pays good attention to the real-world issues of deployment with EJBs (as well as the differences between vendors application servers which run them).
While there are enough details in Java syntax for designing both entity and session beans for the developer, sections on design here will please those who manage projects without delving much into code. Later, the author shows off choices for designing entity and session beans. (For instance, entity beans can allow their "bean containers" to handle the details of connecting to a database, or they can do it themselves. This book demonstrates both approaches.) When it comes to session beans (which "wire" together entity beans to do real work), the author's introduction to managing state and transactions is also a stand-out. Tips for performance and reusability close out the book.
In all, Enterprise JavaBeans provides an engaging tour of one of the most promising component technologies. It's technically astute, but thoroughly approachable too, and can serve the needs of any manager or Java developer considering EJBs for future projects. --Richard Dragan, Amazon.com
Topics covered: Enterprise JavaBeans (EJBs) basics, distributed architectures, Component Transaction Monitors (CTM's), bean-containers, home and remote bean interfaces, resource management, configuring EJB servers, entity beans, JNDI, container-managed and bean-managed persistence, session beans, stateless and stateful beans, transactions, design and performance hints.
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As an authoritative resource for using Enterprise JavaBeans (EJBs) effectively to build and integrate even the largest systems, Applying Enterprise JavaBeans provides what IT managers and developers need to adopt this powerful component standard successfully in new Java projects.Most books on EJBs are strong on theory, but tend to leave out many details of how to implement components in real projects. That's where this text steps in, providing real code (and real design decisions) for implementing different kinds of JavaBeans, like session and entity beans. Better yet, it contains a case study of a human resources benefits enrolment system that integrates data from different vendors, using EJBs as the glue holding them together. (Using fictitious vendor names like "Star Enterprise" "Wombat" and "Providence", the book shows how EJBs can lead to successful enterprise integration.)
Subsequent chapters look at different aspects of this system, from session beans (including stateful beans used to manage sessions) to detailed examples of entity beans in action. There are plenty of state transition diagrams (that show the inner workings of EJBs in a variety of scenarios) and source code (useful for Java developers). Without actually anchoring this material in an actual application server (which would make the book even more practical), it does a good job of fleshing out the EJB standard for real projects, exposing what really goes on between application server "containers" and the beans they manage, including activation and passivation states.
Final sections examine transactions and security options for components, including the use of declarative statements in XML descriptors to simplify these aspects of EJB design. Finally, there's a reference for built-in EJB classes and APIs.
Overall, this book can help put EJBs within reach for programmers and managers. Its mix of practical expert advice and sample source code will help demystify EJB components and how to use them to create successful, state-of-the-art enterprise systems. --Richard Dragan
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Wrox specialise in books written by programmers, for programmers. This latest volume on developing Java- based web applications is no different. All 12 authors are developers and consultants--including some who have been part of Sun's own Java team.The Web is becoming more and more a way of delivering applications, rather than just static Web pages. Java is becoming more and more popular as a tool for building Web applications, thanks to Java servlets and Java Server Pages. Professional Java Server Programming is a big book full of code samples and of real world experience.
Starting with a grounding in Web application development and technologies, the book introduces the various concepts of using Java to deliver Web content--as well as helping to give you the tools you need to work around the limitations of Web servers and Web browsers. You'll also learn how to develop complex database driven applications and how to make the work faster. As this is a book on the cutting edge of Java development, you'll also find sections on using Java with XML documents and LAP directory servers, as well as Enterprise Java Beans. There's even a good look at the next generation of Java technologies--Jini and Java Spaces, with a look at how these can be used in Web applications.
This is a superb and extremely practical book. If you're building Java-based Web server applications, this is a book you need to have next to your terminal, if only for the 300 pages of reference material in the Appendices! --Simon Bisson
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