/**
* Check the login , just one time for one session.
*
* @param database handle $hconn
* @param Auh ojbect $authObject
* @param string $value
* @return BOOL
*/
public function islogin($hconn,$authObject,$value) {
    if($this->isReserved(__METHOD__)) {
        return $this->_islogin;
    }
    /* You should code below following your business logic. */
    //$data=$this->getLoginDataFromDatabase($hconn,$value);
    // $cookie is cookie name and $data must be cookie value.
    //$this->_islogin=$authObject->is_coookie($cookie,$data);
    $this->_islogin=TRUE; // sample
    $this->registerReserved(__METHOD__);
}
/**
* get data from database for compare with cookie data.
*
* @param database handle $hconn
* @param string $value
* @return string
*/
private function getLoginDataFromDatabase($hconn,$value) {
    /* put your business logic code */
    /*
    $peer= new Peer($hconn);
    return $peer->query("select memeber_id from db_thule.tb_member where member_id='.$value.'") ;
    */
    return $value;
}