Java Utililty Methods XML QName

List of utility methods to do XML QName

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Description

The list of methods to do XML QName are organized into topic(s).

Method

QNamegetThreddsCatalogAttributeQName(String localName)
get Thredds Catalog Attribute Q Name 
return new QName(XMLConstants.NULL_NS_URI, localName);
ClassgetTypeFromQName(final QName name)
Return a primitive Class from the specified XML QName (extracted from an xsd file). 
if (name != null) {
    final Class result = CLASS_BINDING.get(name.getLocalPart());
    if (result == null) {
        throw new IllegalArgumentException("unexpected type:" + name);
    return result;
return null;
...
QNamegetTypeQName(Class type)
get Type Q Name 
String namespace = getSchemaNamespace(type.getPackage());
String localPart = getTypeLocalName(type);
if (localPart == null) {
    return null;
return new QName(namespace, localPart);
StringgetUniquePOAName(QName serviceName, String portName, String poaName)
get Unique POA Name 
String result = "{" + serviceName.getNamespaceURI() + "}" + serviceName.getLocalPart() + "#" + portName;
if (poaName != null) {
    result += "#" + poaName;
return result;
QNamegetValueAsQName(XMLStreamReader reader, String value)
Returns a QName from a string. 
if (value != null) {
    int index = value.indexOf(':');
    String prefix = index == -1 ? "" : value.substring(0, index);
    String localName = index == -1 ? value : value.substring(index + 1);
    String ns = reader.getNamespaceContext().getNamespaceURI(prefix);
    if (ns == null) {
        ns = "";
    return new QName(ns, localName, prefix);
} else {
    return null;
QNamegetXmlElementRefOrElementQName(Class jaxbClass, Field field)
Get the name of the field by looking at the XmlElement annotation. 
XmlElementRef xmlElementRef = (XmlElementRef) getAnnotation(field, XmlElementRef.class);
if (xmlElementRef != null) {
    return new QName(xmlElementRef.namespace(), xmlElementRef.name());
XmlElement xmlElement = (XmlElement) getAnnotation(field, XmlElement.class);
if (xmlElement == null || xmlElement.name().equals("##default")) {
    return new QName("", field.getName());
return new QName(xmlElement.namespace(), xmlElement.name());
QNamegetXmlQName(final NamespaceContext context, final String value)
get Xml Q Name 
if (value == null) {
    return null;
} else {
    final int colonIndex = value.indexOf(':');
    if (colonIndex == -1) {
        return new QName(value);
    } else {
        final String prefix = value.substring(0, colonIndex);
...
QNamegetXmlRootElementQName(Class clazz)
get Xml Root Element Q Name 
XmlRootElement root = (XmlRootElement) getAnnotation(clazz, XmlRootElement.class);
if (root == null) {
    return null;
String name = root.name();
String namespace = root.namespace();
if (name == null || name.length() == 0 || name.equals("##default")) {
    name = getSimpleName(clazz.getCanonicalName());
...
ObjectgetXMLValue(String xml, String xQuery, QName resultType)
get XML Value 
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(new StringReader(xml)));
XPathFactory xPathfactory = XPathFactory.newInstance();
XPath xPath = xPathfactory.newXPath();
XPathExpression xPathExpression = xPath.compile(xQuery);
return xPathExpression.evaluate(doc, resultType);
StringgetXSTypeAsString(QName qname)
Return XS type of the qualified name or XS String type in case of null. 
if (qname == null) {
    return XS_NAMESPACE_URI + "#string";
} else {
    String namaspace = qname.getNamespaceURI() != null ? qname.getNamespaceURI() : XS_NAMESPACE_URI;
    return namaspace + "#" + qname.getLocalPart();