Data Validation help

[donewithmytime]

Hello everyone,

Can anyone please suggest me with some examples of how to validate data on the server side. I tried out the Javascript and looked at some regex methods. The regex methods actually use methods from the class Pattern. I cannot find examples that use the Validator class. I was told to read the Javadocs but I am not able to understand how those methods work.

So I would appreciate if anyone could provide me with links to examples for validation at the server site.

[kjkrum]

Javascript would be something you'd use on the client side.

The Validator class is for validating XML against a Schema. Here's an excerpt from a program I'm working on right now. In this snippet, doc is a Document that was passed into the method. XMLInput is the name of the class in which this code appears.

StreamSource source =
	new StreamSource(XMLInput.class.getResourceAsStream("/schema/Input.xsd"));
SchemaFactory sf =
	SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");
Schema schema = sf.newSchema(source);
Validator validator = schema.newValidator();
// make it throw exceptions for all errors
validator.setErrorHandler(new ErrorHandler() {
	@Override
	public void error(SAXParseException e) throws SAXException {
		throw e;				
	}
	@Override
	public void fatalError(SAXParseException e) throws SAXException {
		throw e;					
	}
	@Override
	public void warning(SAXParseException e) throws SAXException {
		throw e;					
	}
});
validator.validate(new DOMSource(doc));

That last line would throw a SAXException if the Document wasn't complete and correct according to the Schema.