Validate document starting at xpath

Hi guys,

I have an issue where I am trying to validate an xml document, but there is header information that I don't want it to validate. So I want to be able to tell it to start validating at a certain xpath location.

xpathExpression contains the xpath link, but it seems to ignore it.

Code:

---

try {
                    DOMSource domSource = new DOMSource(doc, xpathExpression);
                  StringWriter writer = new StringWriter();
                  StreamResult result = new StreamResult(writer);
                  TransformerFactory tf = TransformerFactory.newInstance();
                  Transformer transformer = tf.newTransformer();
                  transformer.transform(domSource, result);
                  String docString = writer.toString();
           
                    SAXBuilder builder =
                new SAXBuilder("org.apache.xerces.parsers.SAXParser", true);
                            builder.setValidation(true);
         
                    builder.setFeature(
                "http: //apache.org/xml/features/validation/schema",
                true);
                    builder.setFeature("http: //apache.org/xml/features/validation/schema-full-checking", true);

            builder.setProperty(
                            "http: //apache.org/xml/properties/schema/external-noNamespaceSchemaLocation",
                                        new File(validationPath).toURI().toString());
            org.jdom.Document docx = builder.build(new StringReader(docString));
            this.wrong(rowCount,1, docString);
                }
              catch (Exception ex){
                      this.wrong(rowCount, 2, ex.getMessage());
                      error = true;
              }

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I also am having a hard way figuring out how to make sure the document is validated properly.

If you use the DOM methods rather than SAX, you can traverse to the node you want to start from and call validate on that. I've never used SAX myself.