getting schema information

[Gaston Escobar]

Hello, 

I'm having a problem using the xml schema API.
In the line:
XSModel schema = rootPSVI.getSchemaInformation();
The method getSchemaInformation() is always returning
null. I send the code, I hope somebody can help me.
thanks a lot!


I'm using the following code to retrieve the xml
schema information:

DOMParser parser = new DOMParser();
parser.setFeature("http://xml.org/sax/features/namespaces";,
true);
parser.setFeature("http://xml.org/sax/features/validation";,
true);
parser.setFeature("http://apache.org/xml/features/validation/schema";,
true);
parser.setFeature("http://apache.org/xml/features/validation/schema-full-checking";,
true);
String id =
"http://apache.org/xml/properties/dom/document-class-name";;
Object value =
"org.apache.xerces.dom.PSVIDocumentImpl";
try {
parser.setProperty(id, value);
} 
catch (SAXException e) {
System.err.println("could not set parser property");
}                                       
parser.parse("NewFile.xml");
Document document = parser.getDocument();
Element root = document.getDocumentElement();
//retrieve PSVI for the root element
ElementPSVI rootPSVI = (ElementPSVI)root;
//retrieve the schema used in validation of this
document
XSModel schema = rootPSVI.getSchemaInformation();
XSNamedMap elementDeclarations =
schema.getComponents(XSConstants.ELEMENT_DECLARATION);
// get schema normalized value
String normalizedValue =
rootPSVI.getSchemaNormalizedValue();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}


This is my xml file:

<?xml version="1.0" encoding="UTF-8"?>
<personas
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:noNamespaceSchemaLocation="NewFile.xsd" >
        <persona>
                <nombre>hgh</nombre>
                <apellido>eee</apellido>
        </persona>
</personas>


and NewFile.xsd is like this:

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema
xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
    <xsd:element name="apellido" type="xsd:string"/>
    <xsd:element name="nombre" type="xsd:string"/>
    <xsd:element name="persona">
        <xsd:complexType>
            <xsd:sequence>
                <xsd:element ref="nombre"/>
                <xsd:element ref="apellido"/>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
    <xsd:element name="personas">
        <xsd:complexType>
            <xsd:sequence>
                <xsd:element ref="persona"/>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
</xsd:schema>




        
        
                
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