XDK DOM 3 implementation doesn't work (i.e ElementEditVAL)

Question

Hi,
I want to use XDK DOM 3 implementation to be able to validate my modification against the schema and then save it to file, for that I found that I have to use ElementEditVAL class and canSetXXX methods, but unfortunately none of them is working and always they return UNKNOWN (7) code or null value.
following are my XML test file and XSD file and at the end the code that I wrote, so I need your help to see why it doesn't work, maybe it is the XSD bug and I don't know about it!
Thank you in advance for your help
XML file:
?xml version = '1.0' encoding = 'UTF-8'?>
<config xmlns:xlink="http://www.w3.org/TR/2000/REC-XLINK-20010627" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="mytest.xsd">
<item name="locked"/>
</config>
XSD file:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
     <xs:complexType name="itemType" mixed="true">
          <xs:attribute name="name" use="required">
               <xs:simpleType>
                    <xs:restriction base="xs:string">
                         <xs:enumeration value="unlocked"/>
                         <xs:enumeration value="locked"/>
                         <xs:enumeration value="shutdown"/>
                    </xs:restriction>
               </xs:simpleType>
          </xs:attribute>
     </xs:complexType>
     <xs:element name="config">
          <xs:annotation>
               <xs:documentation>Comment describing your root element</xs:documentation>
          </xs:annotation>
          <xs:complexType>
               <xs:sequence>
                    <xs:element name="item" type="itemType"/>
               </xs:sequence>
          </xs:complexType>
     </xs:element>
</xs:schema>
Source code:
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import oracle.xml.parser.v2.DOMParser;
import oracle.xml.parser.v2.XMLDocument;
import oracle.xml.parser.v2.XMLElement;
import oracle.xml.parser.v2.XMLNodeList;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.validation.ElementEditVAL;
import java.io.File;
public class forum{
     static XMLDocument document;
     static final String schemaSource = "C:/cmt/ServerSolarisTest/config/mytest.xsd";     
     static final String JAXP_SCHEMA_SOURCE ="http://java.sun.com/xml/jaxp/properties/schemaSource";     
     static final String JAXP_SCHEMA_LANGUAGE ="http://java.sun.com/xml/jaxp/properties/schemaLanguage";
     static final String W3C_XML_SCHEMA ="http://www.w3.org/2001/XMLSchema";
     public static void main(String[] args) {
          if(args.length !=1){
               System.err.println("Please enter the file name");
               System.exit(1);
          }//if
          System.out.println("Start parsing.....");
          try{
//               Create URL String from incoming file
     String url = "file:" + new File(args[0]).getAbsolutePath();               
     String schemaurl = "file:" + new File("C:/cmt/ServerSolarisTest/config/mytest.xsd").getAbsolutePath();
               DOMParser parser = new DOMParser();
// Set parser options
parser.setErrorStream(System.err);
parser.setValidationMode(DOMParser.SCHEMA_VALIDATION);
parser.showWarnings(true);
parser.setXMLSchema(schemaurl);
//               Parser the incoming file (URL)               
parser.parse(url);
               document = parser.getDocument();
               XMLElement root = (XMLElement)(document.getDocumentElement());
               XMLElement Current;
               NamedNodeMap attribs;
               XMLNodeList nlist = (XMLNodeList)document.getElementsByTagName("*");
               String nodeName;
               for(int i = 0; i<nlist.getLength(); i++)
                    attribs = nlist.item(i).getAttributes();
                    Current = (XMLElement)nlist.item(i);
                    ElementEditVAL elval = (ElementEditVAL)Current;
                    //See if Element is item
                    if(Current.getNodeName().equals("item"))
                         for(int j = 0; j<attribs.getLength(); j++)
                              nodeName = attribs.item(j).getNodeName();
                              if(nodeName.equalsIgnoreCase("name"))
                                   if(elval.canSetAttribute(nodeName, "unlockedsdf") == ElementEditVAL.VAL_TRUE)
                                        System.out.println("Valid attribute value");
                                        Current.setAttribute(nodeName, "unlockedsdf");
                                   else
                                        System.out.println("Invalid attribute value");
                                   if(elval.canSetAttribute(nodeName, "locked") == ElementEditVAL.VAL_TRUE)
                                        System.out.println("Valid attribute value");
                                        Current.setAttribute(nodeName, "unlockedsdf");
                                   else
                                        System.out.println("Invalid attribute value");
               //write
               TransformerFactory tFactory =
TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(new File(args[0]));
transformer.transform(source, result);                              
          }catch(Exception e){
               e.printStackTrace();
     }//main     
}//DomEcho2

Answer 1

Using DOM 3.0 Validation Techniques with XDK 10g
http://www.devx.com/Java/Article/31221