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Core Java Data Objects Paperback – September 21, 2003

ISBN-13: 007-6092023319 ISBN-10: 0131407317 Edition: 1st

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Product Details

  • Paperback: 576 pages
  • Publisher: Prentice Hall; 1 edition (September 21, 2003)
  • Language: English
  • ISBN-10: 0131407317
  • ISBN-13: 978-0131407312
  • Product Dimensions: 7 x 0.8 x 9.3 inches
  • Shipping Weight: 1.6 pounds
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (5 customer reviews)
  • Amazon Best Sellers Rank: #3,210,948 in Books (See Top 100 in Books)

Editorial Reviews

From the Back Cover

The experienced Java developer's guide to persistence with JDO!

Master JDO, the breakthrough technology for persistenting Java objects!

Java Data Objects (JDO) streamlines development by providing Java-centric mechanisms for making objects persistent, and standard APIs for connecting application code with underlying persistent datastores. Core Java Data Objects is the definitive, comprehensive guide to JDO persistence for every experienced Java developer.

Using realistic code examples, this book's expert authors cover creating, reading, updating, and deleting persistent objects; object lifecycles and state transitions; JDO classes and APIs; queries, architecture, security, and much more. They show how to integrate JDO with EJB, JTA, JCA, and other J2EE technologies; and introduce best practices for using JDO in both standalone programs and J2EE components.

If you want to spend more time solving business problems and less time worrying about persistence, you need JDO. And you need the one book that'll help you make the most of JDO: Core Java Data Objects.

Every Core Series book:

  • DEMONSTRATES how to write commercial quality code
  • FEATURES nontrivial programs and examples--no toy code!
  • FOCUSES on the features and functions most important to real developers
  • PROVIDES objective, unbiased coverage of cutting-edge technologies -- no hype!

Core Java Data Objects delivers:

  • Practical examples showing how JDO can be applied to existing applications
  • Powerful insights for using JDO to architect new systems more effectively
  • Step-by-step guidance for integrating JDO with other J2EE technologies
  • Best practices for using JDO in real-world business environments

About the Author

SAMEER TYAGI is Enterprise Java Architect at Sun Microsystems' Java Center in Burlington, MA. He co-authored Professional JSP, Professional JSP-J2EE Edition, and Professional Java Server Programming-J2EE Edition, and writes regularly for Java Pro, JavaWorld, and Java Developers Journal.

MICHAEL VORBURGER is Chief Software Architect for Vertical*I, a firm providing enterprise software solutions to the life sciences industries. He has implemented large-scale persistence systems inspired by the JDO standard.

KEIRON MCCAMMON, CTO, Versant Corporation, responsible for product strategy and direction, has worked with finance and telecom customers to develop and deploy large scale Java/J2EE distributed object solutions. A member of the JDO expert group, he presents regularly on JDO at leading events.

HEIKO BOBZIN, also a member of the JDO expert group, led JDO and ODMG 3.0 implementation at Poet Software.

Customer Reviews

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Most Helpful Customer Reviews

7 of 8 people found the following review helpful By Thomas Paul VINE VOICE on December 15, 2003
Format: Paperback
Java Data Objects (JDO) is an alternative to JDBC that allows you to treat rows from a database as Java objects. The simplicity of JDO removes many of the complications involved with developing JDBC applications. This book does a decent job of covering the JDO specification and explaining how to properly use JDO. The book starts with an introduction to JDO and shows some examples of how to write code with JDO. The section on the object lifecycle isn't clearly explained having too much concentration on lists and not enough on explanations. The following chapters do a decent job of explaining the pieces of JDO. In addition to the basics, the book covers using JDO in a J2EE environment with a look at Enterprise JavaBeans, security, and transactions. A later chapter shows a comparison of JDO and JDBC. The authors wrap up with some tips, take a look at what might be coming in the future, and show a case study.
The authors do not look at any JDO implementations, which leaves their explanations in essence, hanging in mid-air. Although they show how to code in JDO they don't show what a programmer needs to do to hook their code in to a database. This means that without further reading, you can't run any of the examples supplied. Although the book is not bad and might be worth a read, it is not as clear or as well written as one might like.
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1 of 1 people found the following review helpful By James Kafka on August 29, 2004
Format: Paperback
Java Data Objects (JDO) is a persistence framework to save Java objects to a datastore. The example code shows you how to create, read, update, and delete a persistent object using the JDO API. The book goes through the JDP API, especially the five main interfaces needed. The metadata, an xml file, that is needed for JDO is make clear in one chapter and the various options in the JDO xml file are explained to show you how to store your type of objects. The explanation of first-class and second-class object could have been longer. It seems like a more important topic and the brief mention in the book.

Part of the book shows you how to develop applications with JDO and the architecture scenarios where you should or should not use JDO. The third part of the book covers using JDO and J2EE application. The authors argue that JDO in most situations offers a better solution over EJB entity beans to store your objects or to use JDO and some direct JDBC. Practical examples showing how JDO can be applied to existing applications

The authors also have a real world case study that provides best practices and tips for your projects. The only part missing from the book, are using JDO implementations, which makes the examples impossible to test without using an implementation from one on the JDO implementers. I would recommend this book for anyone trying to learn JDO, but more information would be needed to use an actual JDO implementation.
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1 of 1 people found the following review helpful By Suresh Chanmugam on November 4, 2003
Format: Paperback
A good presentation for both architects and programmers, about JDO. The author explains the issues with Object oriented programs and relational databases then goes to show how JDO attempts to solve this mismatch (otherwise know as object relational impedance mismatch) Note from this book you will find that JDO is a standard to be implemented by vendors so that developers need not know varying interfaces object relational mapping frame works. JDO also has its own query language, which is not as powerful as SQL especially if you have complex joins or aggregation (OLAP) so, don't drop your JDBC yet! Well written with little fluff. It's not a O'rilly style code code book, it has the write amount of theory and code mix
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6 of 9 people found the following review helpful By W Boudville HALL OF FAMETOP 1000 REVIEWERVINE VOICE on October 23, 2003
Format: Paperback
In the march towards higher levels of abstraction and more powerful coding approaches, Sun came up with Enterprise Java Beans several years ago. But despite one's best efforts, instead of focusing on writing business logic in a modular, fully encapsulated way, you often also have to deal with reading and writing to a persistent format; usually a relational database. The gritty details of the impedance mismathc between your [hopefully] object oriented approach and the latter might eat up too much of your time.
Realising this, Sun devised Java Data Objects. The book describes their main promise, which is to hide away the details of persistence. The big gain is in increasing the potential developer audience, as compared with EJBs. And you have less need of expert knowledge of RDBs. Previously, that was often a de facto requirement. You can now focus on the business logic. The second gain is shown in the JDO code examples, which are often cleaner without the persistence details. Of course, any realistic business logic will have more complicated details than the simple examples in the book, but at least persistence can be pushed offline.
Last year, Robin Roos wrote "Java Data Objects" [also by the same publisher]. At that time, JDO was just getting started. Now, Sun has moved it deeper into J2EE. There is a lot more support for transactions and JDBC. JDO is no longer a speculative fling.
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2 of 3 people found the following review helpful By Ravichandran M. Kaushika on January 22, 2004
Format: Paperback
Name of the book: Core Java Data Objects
Authors: Sameer Tyagi, Keiron McCammon, Michael Vorburger, and Heiko Bobzin.
Published: Sun Microsystems Inc.,
Publishing Date: Winter 2004.
City: Upper Saddle River, NJ
5=Well done! This book will be a valuable teaching and reference tool.
4=I would recommend this book to someone interested in its topic.
5=A complete reference. I would not need any additional reference on this topic.
Write a minimum of three paragraphs describing the different aspects of this book.
This is an excellent book on Java data objects for people who have worked with databases for a long time. the authors have taken the time to explain the concepts of JDO and how it can be implemented with fairly simple examples that are more real world.
the authors also explain about the security aspects in JDO that need to be considered while implementing a real world situation. they also explain the differences between JDO and JDBC for people who have worked with JDBC and ways to implement JDO.
the authors towards the end of the book explains how to explain the implementation of JDO for J2EE and enterprise solutions. they also provide tricks and tips for effective jdo implementation. a real world case study is presented for people who want to implement this solution.
I would recommend this book to anyone interested in learning java data object.
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