UserTable::load PHP Method

  public function load($userid) {
    $user=new User();
    $user->setId($userid);
    return $user;
  }

 public function store($tweet, $author) {
   if (!$tweet->getId())
     $tweet->createId($author);
   HypertableConnection::insert('tweet', $tweet->getId(), 'message',
           $tweet->getMessage());
   $u=UserTable::load($author);
   $u->sendTweet($tweet);
   return true;
 }