DiscountBase::getRoundIndex

protected function getRoundIndex($entity, $applyCounter = null)
{
	if (!$this->isRoundMode(self::ROUND_MODE_SALE_DISCOUNT))
		return null;
	if ($applyCounter === null)
		$applyCounter = $this->discountResultCounter;
	return (isset($this->roundApplyConfig[$applyCounter][$entity]) ? $this->roundApplyConfig[$applyCounter][$entity] : null);
}