Book Image

Processing XML documents with Oracle JDeveloper 11g

Book Image

Processing XML documents with Oracle JDeveloper 11g

Overview of this book

XML is an open standard for creating markup languages and exchanging structured documents and data over the Internet. JDeveloper 11g presents an effective, quick, and easy-to-use means of processing XML documents. Inspired by the author's previous XML articles for the Oracle community, this expanded hands-on tutorial guides newcomers and intermediate users through JDeveloper 11g and XML document development. It offers up-to-date information on working with the latest version of JDeveloper, and brand new information on JAXB 2.0 support in JDeveloper 11g. Filled with illustrations, explanatory tables, and comprehensive instructions, this book walks the reader through the wide assortment of JDeveloper's capabilities. Oracle's JDeveloper 11g is an Integrated Development Environment that provides a visual and declarative approach to application development. Over the course of 14 chapters, readers will get hands-on with JDeveloper as the comprehensive and self-contained tutorials provide clear instruction on the key XML tasks that JDeveloper can accomplish. Filled with practical information and illustrated examples, this book shows the reader how to create, parse, and store XML documents quickly, as well as providing step-by-step instructions on how to construct an XML schema and use the schema to validate an XML document. Oracle's XML Developer Kit (XDK) offers a set of components, tools, and utilities for developing XML-based applications, and developers will find the detailed XDK coverage invaluable. Later chapters are given over to using XPath, transforming XML with XSLT, and using the JSTL XML Tag Library. Moving through the book, a chapter on the JAXB 2.0 API shows you how to bind, marshal and unmarshal XML documents, before we finally delve into comparing XML documents, and converting them into PDF and Excel formats. In all, this book will enable the reader to gain a good and wide-ranging understanding of what JDeveloper has to offer for XML processing.
Table of Contents (19 chapters)
Processing XML documents with Oracle JDeveloper 11g
About the Author
About the Reviewers

Parsing with the JSTL XML tag library

In this section, we shall parse an XML document using the JSTL 1.2 XML tag library. The example XML document, catalog.xml, was added to the JSTLXML project in the previous section.

The parsing application is developed in the parseXML.jsp JSP. Open parseXML.jsp. Next, import the XML document with the JSTL Core tag c:import. Select the Design view of parseXML.jsp and select Import in the JSTL|Core Component Palette in the Design view.

In the Insert Import window specify the Url for the XML document as catalog.xml and click on OK.

The Import tag gets added to the Design view. A corresponding c:import tag gets added to the Source view. Specify a variable name for the XML document imported using the var attribute of the Import tag in the Property Inspector.

The following c:import tag gets added to parseXML.jsp:

<c:import var="xml" url="catalog.xml"/>

The following taglib directive for the JSTL Core tag library also gets added to the parseXML.jsp: