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XML Schema Validation in Xerces-Java 2

Learn the capabilities of XML Schema

Nicholas Chase (nicholas@nicholaschase.com), Author

Nicholas Chase has been involved in Web site development for companies such as Lucent Technologies, Sun Microsystems, Oracle, and the Tampa Bay Buccaneers. Nick has been a high school physics teacher, a low-level radioactive waste facility manager, an online science fiction magazine editor, a multimedia engineer, and an Oracle instructor. More recently, he was the Chief Technology Officer of Site Dynamics Interactive Communications in Clearwater, Florida, USA, and is the author of three books on Web development, including Java and XML From Scratch (Que) and the upcoming Primer Plus XML Programming (Sams). He loves to hear from readers and can be reached at nicholas@nicholaschase.com.

Summary:  This tutorial is for developers who need to build XML Schema support into Xerces-Java based applications. It discusses the XML Schema capabilities of the Xerces-Java 2.x parser and demonstrates their use in a Java application.

Date:  16 Jul 2002
Level:  Intermediate
PDF:  A4 and Letter (318 KB | 31 pages)Get Adobe® Reader®

Activity:  11823 views
Comments:  

Summary

Summary

XML data increases its usefulness if its structure can be predicted. It is for this reason that the XML 1.0 recommendation provided for Document Type Definitions against which a validating parser could compare the data. These DTDs provided for additional information, such as defaulted attributes, but also required the learning of a new syntax, and were limited in the amount of control provided to programmers. For these reasons, the XML Schema specification was developed. Schemas allow the definition of XML structures using XML itself.

The Xerces-Java 2 XML parser is a fully-conforming XML Schema processor. It enables developers to create schemas according to the W3C's XML Schema Recommendation and validate instance documents accordingly. Xerces provides a good deal of programmatic control over the process through the use of features and properties that can be set within the application.

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TutorialTitle=XML Schema Validation in Xerces-Java 2
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