How to represent classes called via JNI on a UML class diagram

Question

Currently I am finishing up my Android project which detects numbers in real time using OpenCV and Tesseract. I have created a class diagram which consists of all the Java classes, but the problem is I do not know how to add into it, a class written in C++ (which is called via JNI). I think it would be important to show calls to this C++ class that happen from the Java side, but I have no idea what the associations should look like, as I have never seen a class diagram that consisted of anything other than Java classes.

Any guidance would be appreciated. Thanks.

Answer 1

I would define it as an interface with a stereotype, like <<native>>

see UML stereotypes for a brief description of stereotypes.