The value of a QName contains a namespaceURI and a localPart. The localPart provides the local part of the qualified name. The namespaceURI is a URI reference identifying the namespace.
The prefix is included in the QName class to retain lexical information where present in an XML input source. The prefix is NOT used to compute the hash code or in the
equals operation. In other words, equality is defined only using the namespaceURI and the localPart.