Making generic calls with JAVA JNI and C++

Question

I am working with JNI and I have to pass in some generic types to the C++. I am stuck with how to approach this on the C++ side

HashMap

        

Answer 1

It depends on what you're trying to map to and if they are yours to change.

Here are a few directions I'd try to go about (if i were you, that is :) ):

1. Using SWIG templates (related SO question) or TypeMaps.
2. Doing some reflection magic to be used against your-own-custom-generic-data-passing native API (haven't figured the details out, but if you want to follow on it, tell what you've got on the C++ side).

This has been asked before and you might want to resort to Luis' arrays solution.