public function updateStatus($serverStatus)
{
if (!$this->serverId) {
throw new RuntimeException(sprintf("Server identifier has not been set in %s object yet.", get_class($this)));
}
$this->db()->Execute("\n UPDATE " . $this->table() . " SET {$this->columnStatus} = " . $this->qstr('status', $serverStatus) . "\n WHERE {$this->columnServerId} = " . $this->qstr('serverId', $this->serverId) . "\n ");
$this->status = $serverStatus;
return $this;
}