Schema validation with a DOM parser

In this section, we shall validate the example XML document, catalog.xml, against catalog.xsd with the DOMParser class. The procedure to validate with a DOMParser is the same as with a SAXParser, except that the parser class is different. First, import the oracle.xml.parser.schema and the oracle.xml.parser.v2 packages.

Creating a DOM parser

Create a DOMParser object and set validation mode to SCHEMA_VALIDATION, as shown in the following listing:

DOMParser domParser=new DOMParser(); domParser.setValidationMode(XMLParser.SCHEMA_VALIDATION);

Create an XMLSchema object, which represents the DOM structure of an XML schema document, from the example schema document. To create an XMLSchema object, first create an XSDBuilder object. Next, create an InputStream object from catalog.xsd and subsequently create an InputSource object from the InputStream object. Create an XMLSchema object with the build(InputSource) method of the XSDBuilder class. The procedure to obtain...