# Urn.class.php

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    00001 <?php
    00002 /***************************************************************************
    00003  *   Copyright (C) 2007 by Ivan Y. Khvostishkov                            *
    00004  *                                                                         *
    00005  *   This program is free software; you can redistribute it and/or modify  *
    00006  *   it under the terms of the GNU Lesser General Public License as        *
    00007  *   published by the Free Software Foundation; either version 3 of the    *
    00008  *   License, or (at your option) any later version.                       *
    00009  *                                                                         *
    00010  ***************************************************************************/
    00011
    00017     final class Urn extends GenericUri
    00018     {
    00019         protected $schemeSpecificPart   = null;
    00020
    00021         protected $knownSubSchemes  = array(
    00022             'urn'       => 'Urn',
    00023             'mailto'    => 'Urn',
    00024             'news'      => 'Urn',
    00025             'isbn'      => 'Urn',
    00026             'tel'       => 'Urn',
    00027             'fax'       => 'Urn',
    00028         );
    00029
    00033         public static function create()
    00034         {
    00035             return new self;
    00036         }
    00037
    00038         public function getKnownSubSchemes()
    00039         {
    00040             return $this->knownSubSchemes;
    00041         }
    00042
    00043         public function isValid()
    00044         {
    00045             if (
    00046                 $this->scheme === null
    00047                 || $this->getAuthority() !== null
    00048             )
    00049                 return false;
    00050
    00051             return parent::isValid();
    00052         }
    00053     }
    00054 ?>