Xerces - validator won't catch wrong input in xml file

Question

Hi there,
I am using xerces 2.9.1 and Java 5
here is my code
package xmltesting;
import java.io.IOException;
import org.apache.xerces.parsers.DOMParser;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;
public class DomParserExample {
     Document dom;
     public DomParserExample() {
     public void runExample() {
          //parse the xml file and get the dom object
          parseXmlFile();
     private void parseXmlFile(){
          //get the factory
          DOMParser parser = new DOMParser();
          try {
               parser.setFeature("http://apache.org/xml/features/validation/schema",true);
          } catch (SAXNotRecognizedException e) {
               e.printStackTrace();
          } catch (SAXNotSupportedException e) {
               e.printStackTrace();
          try {
               ErrorChecker errors = new ErrorChecker();
               parser.setErrorHandler(errors);
               //parse using builder to get DOM representation of the XML file
               parser.parse("xmltesting/shiporder.xml");
               dom = parser.getDocument();
          } catch(IOException ioe) {
               ioe.printStackTrace();
          } catch (SAXException saxe) {
               saxe.printStackTrace();
          System.out.println("Everything parsed without any problem");
     public static void main(String[] args){
          //create an instance
          DomParserExample dpe = new DomParserExample();
          //call run example
          dpe.runExample();
}My xml is following
<?xml version="1.0" encoding="ISO-8859-1"?>
<shiporder orderid="889923"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="shiporder.xsd">
<orderperson>John Smith</orderperson>
<shipto>
  <name>Ola Nordmann</name>
  <address>Langgt 23</address>
  <city>4000 Stavanger</city>
  <country>Norway</country>
</shipto>
<item>
  <title>Empire Burlesque</title>
  <note>Special Edition</note>
  <quantity>1</quantity>
  <price>10.90</price>
</item>
<item>
  <title>Hide your heart</title>
  <quantity>1</quantity>
  <price>9.90</price>
</item>
</shiporder>
</xs:schema>and schema xsd is
<?xml version="1.0" encoding="ISO-8859-1" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="shiporder">
<xs:complexType>
  <xs:sequence>
   <xs:element name="orderperson" type="xs:string"/>
   <xs:element name="shipto">
    <xs:complexType>
     <xs:sequence>
      <xs:element name="name" type="xs:string"/>
      <xs:element name="address" type="xs:string"/>
      <xs:element name="city" type="xs:string"/>
      <xs:element name="country" type="xs:string"/>
     </xs:sequence>
    </xs:complexType>
   </xs:element>
   <xs:element name="item" maxOccurs="unbounded">
    <xs:complexType>
     <xs:sequence>
      <xs:element name="title" type="xs:string"/>
      <xs:element name="note" type="xs:string" minOccurs="0"/>
      <xs:element name="quantity" type="xs:positiveInteger"/>
      <xs:element name="price" type="xs:decimal"/>
     </xs:sequence>
    </xs:complexType>
   </xs:element>
  </xs:sequence>
  <xs:attribute name="orderid" type="xs:string" use="required"/>
</xs:complexType>
</xs:element>
</xs:schema>Now I wanted to try and create problems in the xml file so the validator can catch those errors so i changed the quantity and price values to 'abc' string (they should be integer and decimal values respectively) everywhere in the xml file BUT the validation did not throw any errors and that is where i am confused.
do i need to do something else in the Java code?
thanks
Edited by: Shazmiester on Aug 11, 2008 10:20 AM
Edited by: Shazmiester on Aug 11, 2008 10:25 AM

Answer 1

here is my ErrorChecker code
package xmltesting;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.SAXParseException;
public class ErrorChecker extends DefaultHandler
     public ErrorChecker() {
     public void error (SAXParseException e) {
          System.out.println("Parsing Error: " + e.getMessage());
     public void warning (SAXParseException e) {
          System.out.println("Parsing warning: " + e.getMessage());
     public void fatalError(SAXParseException e) {
          System.out.println("Fatal Parsing Error.: " + e.getMessage());
          System.out.println("Exiting...");
          System.exit(1);
}Looks ok to me, the warnings don't show up at all.