Existing class from library implements interface

Question

I am developing a software which needs to detect different kinds of tracking codes (barcode, qr-code, RFID, etc). I have made an interface TrackingIdentifier which will be implemented by BarcodeIdentifier , QRCodeIdentifier , RFIDIdentifier , etc. For barcode and qrcode, the input to the detection algorithm will be cv::Mat &image. But for RFID it will be something else. The code will be something like this :

class TrackingIdentifier{

public:
virtual std::string getTrackingCode(ITrackingInfoHolder *holder) = 0;
};

Can the existing cv::Mat implement this ITrackingInfoHolder ?

Answer 1

You could use the Adapter Pattern .

struct MatInfo : ITrackingInfoHolder {
    info getInfo() override {
        return mat....();  // delegate to cv::Mat implementation
    }

private:
    cv::Mat mat;
};