Help generating and validating an xml document

Jean-Noël Colin Tue, 02 Feb 2010 04:23:11 -0800

I'm quite new to xerces, and having problems with basic operations: I have defined an XML Schema (xsd) with a specific namespace for the defined types and elements.

Then, I need to create an XML document (by adding nodes, etc), and then, to validate the document against the schema.

Using Oxygen, I manage to generate the following XML sample from the schema. It properly uses namespaces (although I'm wondering whether ns1: prefix should not also appear in front of all elements.

<?xml version="1.0" encoding="UTF-8"?>
<ns1:position xmlns:ns1="http://info.fundp.ac.be/infob318/2009/projetg"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://info.fundp.ac.be/infob318/2009/projetg file:/Users/jnc/Documents/workspace/GServer/WebContent/WEB-INF/gserver.xsd">
  <longitude>0</longitude>
  <latitude>0</latitude>
  <timeStamp>-1073741773</timeStamp>
</ns1:position>

Using xerces, I'm getting the following:

<?xml version="1.0" encoding="UTF-16"?>

</position>

So i have several questions:

why doesn't xerces include also the other schema (xsi) and schemaLocation?
why are the namespace definitions included in the element and not in the root (<?xml...)

The code used to generate the above xml is presented below

gserver.xsd
Description: Binary data

, and I'm attaching the .xsd

Thanks a lot for your help

Best regards

Jean-Noël Colin

DocumentBuilder docBuilder = null;

try {

docBuilder = factory.newDocumentBuilder();

} catch (ParserConfigurationException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

document = docBuilder.newDocument();

Element positionElement = document.createElementNS("http://info.fundp.ac.be/infob318/2009/projetg", "position");

Element element;

element = document.createElement("longitude");

element.setTextContent(String.valueOf(3.5));

positionElement.appendChild(element);

element = document.createElement("latitude");

element.setTextContent(String.valueOf(4.5));

positionElement.appendChild(element);

element = document.createElement("altitude");

element.setTextContent(String.valueOf(5.5));

positionElement.appendChild(element);

element = document.createElement("timestamp");

element.setTextContent(String.valueOf(Calendar.getInstance()

.getTimeInMillis()));

positionElement.appendChild(element);

document.appendChild(positionElement);

Help generating and validating an xml document

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