/**
* Returns singleton instance.
*
* The instantiation of 2 WebDAV servers at the same time does not make
* sense and could possibly cause strange effects, like double sending of a
* response. Therefore the server implements a singleton and its only
* instance must be retrieved using this method. Configuration changes can
* then be performed through the properties of this instance.
*
* @return ezcWebdavServer
*/
public static function getInstance()
{
if (self::$instance === null) {
self::$instance = new ezcWebdavServer();
}
return self::$instance;
}
