protected function _incrementQueriesQuantity()
{
$this->getAws()->queriesQuantity++;
$eventObserver = $this->getAws()->getEventObserver();
if (isset($eventObserver) && $eventObserver->isSubscribed(EventType::EVENT_SEND_REQUEST)) {
$eventObserver->fireEvent(new SendRequestEvent(array('requestNumber' => $this->getAws()->queriesQuantity)));
}
}