Validate XML Document

[Deon Bottha]

Hi I was wondering how I could validate a document based on a hard coded string representing a dtd in my program. basically I have:

private static final String DTD =  // dtd that the animation xml file must follow
            "<?xml version='1.0' encoding='utf-8'?>" +
            "<!ELEMENT animation (frame+)>" + 
            "<!ELEMENT frame (#PCDATA)>" +
            "<!ATTLIST frame duration CDATA #REQUIRED>";
Document doc;

doc has allready been filled with xml data:

DOMResult result = new DOMResult(doc);
StreamSource source = new StreamSource(zip.getInputStream(zip.getEntry("animation.xml")));
            
TransformerFactory tfactory = TransformerFactory.newInstance();
Transformer transformer = tfactory.newTransformer();
transformer.transform(source, result);

now i simply want to validate the document against my hard coded dtd. Thanks