Validating xml sax
Validating xml sax - dating neath
A DTD or an XML Schema plus a validating parser make a document usable across applications.
This is the reason why (most of the) XML parser implementations do not support XML Namespaces by default, to handle the validation of XML documents with namespaces correctly it is therefore necessary to configure the underlying parsers to provide support for XML Namespaces.Moreover it is using the 'reserved' xsi prefix which is generally used by "Xml Schema Instance".Maybe the DOM validation is getting tricked by this "fake" xmlns:xsi prefix somehow, can you try with another namespace value than as stated in forty-two comment, can you show the code that calls the DOM validation ?In XML parsers, validation is usually turned off by default because many XML authors are not writing constraints; leaving it off helps to avoid lengthy processing in production environments.To turn on validation, you must request it explicitly.The key to giving meaning to an XML document -- and the crux of validation -- lies in the set of constraints that governs that document, and in ensuring that those constraints are followed.
As an example, the element elements are allowed (as in a lengthy novel with hundreds of pages).However, you can use other XML and XSD documents as the files for this application.The Results text box should display the following message: Error: (-2147467259) Element 'review' is unexpected according to content model of parent element 'book'. W3C_XML_SCHEMA_NS_URI); Schema schema = a Schema(new File("schema1.xsd")); Validator validator = Validator(); Source dsource = new DOMSource(doc); validator.validate(dsource); your target Namespace definition is unusual (it looks like a prefix declaration in itself). But when we use DOM parser it gives error that " Validator Class: org.apache.xerces.validation. SAXParse Exception; cvc-elt.1: Cannot find the declaration of element 'diagram'." // load document // Get Document Builder Document Builder Factory factory = Document Builder Instance(); Document Builder builder = Document Builder(); // Build Document Document doc = builder.parse(new File("./resources/xml1.xml")); Schema Factory a SF = Schema Instance(XMLConstants.However, to check if an XML document conforms to an XML Schema, the document must be validated against that XML Schema.