Qname what is

This value represents no explicitly defined Namespace as defined by the Namespaces in XML specification. This action preserves compatible behavior with QName 1. Explicitly providing the XMLConstants. If the local part is null an IllegalArgumentException is thrown.

A local part of "" is allowed to preserve compatible behavior with QName 1. When using this constructor, the prefix is set to XMLConstants. If the prefix is null , an IllegalArgumentException is thrown. Use XMLConstants. Making this explicit during the construction of a QName helps prevent hard to diagnosis XML validity errors. For example, a QName may be assigned a prefix in the context of parsing a document but that prefix may be invalid in the context of a different document.

If the Object to be tested is not a QName or is null , then this method returns false. Generally speaking, localname is the local name, meaning inside the namespace. This is however very general, and settings-dependant. Take a look at the example at the end of this page for a more thorough example: example. By default, an XML reader will report a Namespace URI and a localName for every element that belongs in a namespace, in both the start and end handler.

Most XMLReader implementations also report the original qName html:hr, but that parameter might simply be an empty string except for elements that aren't in a namespace.

Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. What is the difference between localname and qname? Ask Question. Asked 10 years, 2 months ago. Active 7 years, 8 months ago. Viewed 42k times. String getPrefix Gets the prefix for this QName. String toString Returns a string representation of this QName.

Methods inherited from class java. Overrides: toString in class Object Returns: a string representation of the QName equals public boolean equals Object obj Tests this QName for equality with another object. If the given object is not a QName or is null then this method returns false. This method uses String.