public function addOrderLine(OrderLineInterface $orderLine)
    {
        if (!$this->orderLines->contains($orderLine)) {
            $this->orderLines->add($orderLine);
        }

        return $this;
    }
public function addOrderLine(OrderLineInterface $orderLine)
    {
        if (!$this->orderLines->contains($orderLine)) {
            $this->orderLines->add($orderLine);
        }

        return $this;
    }
public function addOrderLine ( OrderLineInterface $ orderLine ) { if ( ! $ this -> orderLines -> contains ( $ orderLine ) ) { $ this -> orderLines -> add ( $ orderLine ) ; } return $ this ; }
Add order line.

@param OrderLineInterface $orderLine Order line

@return $this Self object
Add order line .