In the example below, the annotation will not be returned by the getAnnotation()
or getAnnotations() methods of XSElementDeclaration:
<xs:element ref="child">
<xs:annotation>
<xs:documentation>annotation of reference</xs:documentation>
</xs:annotation>
</xs:element>
I couldn't find any way to retrieve this particular annotation via PSVI.
Attached is a minimal test case (Java, XML, and XSD file) that demonstrates this
problem. The getAnnotations() method only returns the annotation from the target
of the reference (i.e. the global declaration of the <child> element), but the
annotation from the reference itself is completely ignored.
import java.io.FileInputStream;
import javax.xml.parsers.SAXParserFactory;
import org.apache.xerces.xs.*;
import org.xml.sax.*;
import org.xml.sax.helpers.DefaultHandler;
public class TestPSVI
{
public static void main(String args[]) throws Exception {
XMLReader parser =
SAXParserFactory.newInstance().newSAXParser().getXMLReader();
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.setProperty("http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation";,
"ref-ann.xsd");
parser.setContentHandler(new PSVIPrinter((PSVIProvider)parser));
parser.parse(new InputSource(new
FileInputStream("ref-ann.xml")));
}
public static class PSVIPrinter extends DefaultHandler {
private PSVIProvider psvi;
public PSVIPrinter(PSVIProvider psvi) {
this.psvi = psvi;
}
public void startElement(String uri, String localName, String
qName, Attributes atts) throws SAXException {
XSObjectList annots =
psvi.getElementPSVI().getElementDeclaration().getAnnotations();
System.out.println(qName + " (" + annots.getLength() +
" annotations):");
for (int i = 0; i < annots.getLength(); i++)
System.out.println(((XSAnnotation)annots.item(i)).getAnnotationString());
System.out.println("");
}
}
}
<?xml version="1.0" encoding="UTF-8"?>
<top>
<child/>
</top>
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";>
<xs:element name="top">
<xs:annotation>
<xs:documentation>annotation for top</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence maxOccurs="unbounded">
<xs:element ref="child">
<xs:annotation>
<xs:documentation>annotation for child reference</xs:documentation>
</xs:annotation>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="child">
<xs:annotation>
<xs:documentation>annotation for child target</xs:documentation>
</xs:annotation>
</xs:element>
</xs:schema>
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