Java and XML Binding.pdf

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Brett McLaughlin
Publisher: O'Reilly
First Edition May 2002
ISBN: 0-596-00278-5, 214 pages
This new title provides an in-depth technical look at XML Data Binding.
The book offers complete documentation of all features in both the Sun
Microsystems JAXB API and popular open source alternative
implementations (Enhydra Zeus, Exolabs Castor and Quick). It also gets
into significant detail about when data binding is appropriate to use, and
provides numerous practical examples of using data binding in
applications.
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Copyright © 2002 O'Reilly & Associates, Inc. All rights reserved.
Printed in the United States of America.
Published by O'Reilly & Associates, Inc., 1005 Gravenstein Highway North, Sebastopol,
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those designations appear in this book, and O'Reilly & Associates, Inc. was aware of a
trademark claim, the designations have been printed in caps or initial caps. The
association between the image of an osprey and the topic of Java and XML data binding
is a trademark of O'Reilly & Associates, Inc.
While every precaution has been taken in the preparation of this book, the publisher and
author(s) assume no responsibility for errors or omissions, or for damages resulting from
the use of the information contained herein.
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Table of Content
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Preface
XML data binding. Yes, it's yet another Java and XML API. Haven't we seen enough of
this by now? If you don't like SAX or DOM, you can use JDOM or dom4j. If they don't
suit you, SOAP and WSDL provide some neat features. But then there is JAXP, JAXR,
and XML-RPC. If you just can't get the swing of those, perhaps RSS, portlets, Cocoon,
Barracuda, XMLC, or JSP with XML-based tag libraries is the way to go.
The point of that ridiculous opening is that you, as a developer, should expect some
justification for buying yet another XML book, on yet another XML API. The market
seems flooded with books like this, and the torrent has yet to slow down. And while I
realize that I use circular reasoning when insisting that this API is important (I did write
this book on it), that's just what I'm going to do.
XML data binding has taken the XML world by storm. Thousands of programmers
simply threw up their hands trying to track SAX, DOM, JDOM, dom4J, JAXP, and the
rest. It's become increasingly difficult to parse a silly little XML document, rather than
increasingly simple. If it's not namespaces that get you, it's whitespace. Is that carriage
return after my element name significant? Well, it depends on whether you specify a
DTD; oh, you used an XML Schema? Well, we don't support that yet. I'm sure you know
exactly what I'm talking about.
The reason why XML data binding is important, and so remarkably different from other
approaches, is because it gets you from XML to business data with no stops in between.
You don't have to deal with angle brackets, entity references, or namespaces. A data
binding framework converts from XML to data, without your messing around under the
hood. For most developers who try to get into XML without spending months doing it,
data binding is just the answer you are looking for.
This book covers data binding from front to back, giving you the ins and outs of what
may turn out to be the API that makes XML accessible to even the newest programmers.
You'll learn how to perform basic conversions from Java to XML, all the way to using
various frameworks for advanced transformations and mappings. It's all in this (nicely
compact) book, without lots of wasted words and frilly examples. If you want to use data
binding, this book is for you. If you don't, well, put it down and go pick up about ten
other books so you can manipulate XML some other way. I think the choice is obvious;
so get started!
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