Enterprise JavaBeans 3.0

The author of Enterprise Javabeans, Second Edition is currently the lead architect for OpenEJB. He spends the first 80 pages describing distributed object architectures, and it's barely enough. The English language strains to encompass complex and unfamiliar relationships using familiar words. A book on this subject can read a little like a mediaeval grimoire, for much the same reasons. Fortunately, while this theoretical background is necessary to understand how EJBs work, most of the book is follows the development of an example EJB designed to be used by a company running a passenger liner. This enables the author to produce lots of demonstration code and to discuss the difference between entity and session beans (think nouns and verbs), stubs, skeletons, containers, XML deployment descriptors, JNDI Naming Context, transaction management, security models, data persistence and so on.

To benefit from Enterprise Javabeans you need basic Java skills, a good grasp of OOPs and some understanding of the data processing needs of large businesses. There is a need for a quick and dirty cookbook approach to EJB development, which this isn't. Most programmers just want to know how, but Richard Monson-Haefel ensures you know why as well. This makes for a harder, if more interesting, read, which does repay study on several levels. --Steve Patient

Amazon.co.uk
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.

Amazon.com
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 centers 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 close attention to the real-world issues of deployment with EJBs (as well as the differences among the vendor application servers that 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 various ways to design 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 standout. 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

Topics covered: Enterprise JavaBeans (EJBs) basics, distributed architectures, Component Transaction Monitors (CTMs), 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.

Can't neglect a single word. Sometimes author might reiterate some features. Author is well focussed on the objectives.


Start Here - Best book and VERY well written   Juli 5, 2000
Gerry Kaplan
1 aus 1 fanden die folgende Rezension hilfreich

It is so refreshing to finally read a book where the author knows what he is talking about AS WELL AS knows how to write. The unfortunate trend in this industry is to write 500++ page monster books filled with brainless examples, attempts at humor, and screen shots ad nauseum. Richard Monson-Haefel (the author) has focused on the topic at hand and avoided unnecessary fluff along the way. He has clearly done his homework, which is obvious just from reading the Acknowledgements. Unlike other books which are filled with pointless graphic images of dialog boxes and enumerated steps on what buttons, keystrokes, and actions the reader should take, this book explains the concepts clearly and in depth, provides complete code listings to show how the concepts work, and accounts for the fact that different platforms require different approaches.

I highly recommend this book, even for the beginner to EJB, as the author starts you from the ground up. In addition to the content being excellent, the author's command of English lends to an easy to read and understand book. It is refreshing to finally read a well written book on current technology. I will now always check for O'Reilly published books first.