Class Guid

<?PHP
            class Guid extends Object implements Guid_Interface
            {
                    public function __construct()
                    {
                        try{

                            try{parent::__construct(NULL);}
                            catch(DatatypeExpectedException $e){throw new DatatypeExpectedException($e->getCode());}
                            catch(ArgumentNullException $e){throw new ArgumentNullException($e->getCode());}

                            $uid = new String;
                            $int = new Integer;
                            $cat = new String;

                            $uid->set((string) md5($this->getHashCode()->get()))
                                ->insert($int->set(8), $cat->set('-'))
                                ->insert($int->set(13), $cat)
                                ->insert($int->set(18), $cat)
                                ->insert($int->set(23), $cat);

                            $this->set($uid->get());
                            $this->finalize()->lock();

                        }catch(SystemException $e){throw new ObjectHandlerException(ObjectHandlerException::ERROR_CAN_NOT_CREATE, $e);}

                    }
            }