Xmlreaderfactory how to validating xml
It provides classes and methods for an application to navigate and process the tree.
In general, the DOM interface is most useful for structural manipulations of the XML tree, such as reordering elements, adding or deleting elements and attributes, renaming elements, and so on.
Here is a tutorial example of how to use Xerces XMLReader and SAXParser directly: /** * Xerces Schema - Copyright (c) 2013, Herong Yang.com, All Rights Reserved.
SAXParse Exception; import org.apache.xerces.parsers. SAXParser; class Xerces Schema Validator java -classpath .;\local\xerces-2_9_1\xerces Xerces Schema Validator Parsing and validating: Error: Line number: 2 Column number: 4 Message: cvc-elt.1: Cannot find the declaration of element 'p'.
A software module called an XML processor is used to read XML documents and provide access to their content and structure.
It is assumed that an XML processor is doing its work on behalf of another module, called the application. Text description of the illustration adxml040XML APIs generally fall into the following two categories: A tree-based API (such as DOM) builds an in-memory tree representation of the XML document.
If a stylesheet is used, the DOM or SAX interface also parses and outputs the XSL commands.
These are sent together with the parsed XML to the XSLT Processor where the selected stylesheet is applied and the transformed (new) XML document is then output.
An event-based API (such as SAX) uses calls to report parsing events to the application.
This enables an application to more easily identify elements and attributes it is designed to process.
The Java parser supports namespaces by being able to recognize and parse universal element types and attribute names, as well as unqualified "local" element types and attribute names.
It will make some XML schema validation tool happier, if the schema location is assigned inside an XML document.
However, if you are writing a Java program with JAXP 1.4 to perform the validation, it becomes harder.