/**
  * Answer the is authorized cache used by this manager.
  *
  * WARNING: NOT IN OSID
  * 
  * @return object IsAuthorizedCache
  * @access public
  * @since 4/21/08
  */
 public function getIsAuthorizedCache()
 {
     if (!isset($this->isAuthorizedCache)) {
         $this->isAuthorizedCache = AuthZ2_IsAuthorizedCache::initializeForManager($this);
     }
     return $this->isAuthorizedCache;
 }