/// <summary>
/// Get the name of the value's XDM type
/// </summary>
/// <param name="processor">The <c>Processor</c> object.
/// This is needed for access to the NamePool,
/// which maps the internal form of type names to their external form.</param>
/// <returns>The type of the value, as a QName. This may be a built-in type or a user-defined
/// atomic type.
/// </returns>
public QName GetTypeName(Processor processor)
{
int fp = ((JAtomicType)((JAtomicValue)value).getItemType(null)).getFingerprint();
NamePool pool = processor.config.getNamePool();
return(new QName(pool.getPrefix(fp),
pool.getURI(fp),
pool.getLocalName(fp)));
}
/// <summary>
/// Construct a QName from a lexical QName, supplying an element node whose
/// in-scope namespaces are to be used to resolve any prefix contained in the QName.
/// </summary>
/// <remarks>
/// <para>This constructor checks that the components of the QName are
/// lexically valid.</para>
/// <para>If the lexical QName has no prefix, the name is considered to be in the
/// default namespace, as defined by <c>xmlns="..."</c>.</para>
/// <para>If the prefix of the lexical QName is not in scope, returns null.</para>
/// </remarks>
/// <param name="lexicalQName">The lexical QName, in the form <code>prefix:local</code>
/// or simply <c>local</c>.</param>
/// <param name="element">The element node whose in-scope namespaces are to be used
/// to resolve the prefix part of the lexical QName.</param>
/// <exception cref="ArgumentException">If the prefix of the lexical QName is not in scope</exception>
/// <exception cref="ArgumentException">If the lexical QName is invalid
/// (for example, if it contains invalid characters)</exception>
///
public QName(String lexicalQName, XdmNode element)
{
try {
NodeInfo node = (NodeInfo)element.value;
NamePool pool = node.getConfiguration().getNamePool();
int nc = pool.allocateLexicalQName(lexicalQName, true, new InscopeNamespaceResolver(node),
node.getConfiguration().getNameChecker());
this.uri = pool.getURI(nc);
this.local = pool.getLocalName(nc);
this.prefix = pool.getPrefix(nc);
} catch (net.sf.saxon.trans.DynamicError err) {
throw new ArgumentException(err.getMessage());
}
}
