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Sun's implementation supports any combination of configuration options.(If a combination is not supported by a particular implementation, it is required to generate a factory configuration error.) Although a full treatment of XML Schema is beyond the scope of this tutorial, this section shows you the steps you take to validate an XML document using an existing schema written in the XML Schema language.
A JAXP implementation could legally use a DOM parser in this case, but there is no reason to. In debian squeeze it is located in the package "libxerces-c-samples".
If you use a DOM parser explicitly for validation, you will definitely instantiate a DOM tree.// parse an XML document into a DOM tree Document Builder parser = Document Builder Instance()Document Builder(); Document document = parser.parse(new File("instance.xml")); // create a Schema Factory capable of understanding WXS schemas Schema Factory factory = Schema Instance(XMLConstants. If I use an Error Handler (own class that implements Error Handler) instead, it recognizes all errors, but the try-catch-block of validator.validate does not throw any Exception.. The definition of the dtd and xsd has to be in the xml! If you are generating XML files programatically, you may want to look at the XMLBeans library.
This means root elements, nesting and a declaration statement.
A non-validating parser will give the code a quick check to make sure that you have all the basics in place. Parsers that validate compare a set of specific rules for each XML file, such as a DTD or schema.
An XML parser is the component that deciphers the XML code.