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Sun's JDK 6 uses SAX parser with a Stream Source. @ziggy - this is an implementation detail of the JAXP implementation.In other words, it can tell you whether the document is valid.If validation is not activated, however, it can only tell whether or not the document is well-formed, as was shown in the previous section when you deleted the closing tag from an XML element. This will start creating DOM objects as it parses the document - wasteful if you aren't going to use them. You should not use the DOMParser to validate a document (unless your goal is to create a document object model anyway).uses the non-validating parser by default, but it can also activate validation.

This section examines the validating parser to find out what happens when you use it to parse the sample program.

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.

W3C_XML_SCHEMA_NS_URI); // load a WXS schema, represented by a Schema instance Source schema File = new Stream Source(new File("my Schema.xsd")); Schema schema = Schema(schema File); // create a Validator instance, which can be used to validate an instance document Validator validator = Validator(); // validate the DOM tree try catch (SAXException e) Working this way, a SAXException would be thrown at the first error in the xml-file and stops then the validation. How do I recognize an error in the class that invokes the validate-method of my validator? Using a command line tool, XMLBeans will automatically generate and package up a set of Java objects based on an XSD.

W3C_XML_SCHEMA_NS_URI); try catch (SAXException e) catch (IOException e) but you could just as easily validate against a local file.

Source xml File = new Stream Source(new File("web.xml")); Schema Factory schema Factory = Schema Factory Instance(XMLConstants.