From Joomla! Documentation
The "API15" namespace is an archived namespace. This page contains information for a Joomla! version which is no longer supported. It exists only as a historical reference, it will not be improved and its content may be incomplete and/or contain broken links.
JNode is a class that allows you to create nodes, normaly used as "leaves" of object-trees. Often used in conjunction with the JTree class.
|__construct||Class constructor, overridden in descendant classes.|
jimport( 'joomla.base.tree' );