Re: [igraph] Igraph with JNI

[Tamas Nepusz]

Hi Gang,

> Also if you could provide me with some of your proof-of-concept code  
> that will be great.
I will clean up my code soon and commit it to the igraph Launchpad  
repository so you can take a look at it. The conversion between C and  
Java is not completely trivial as we have some C functions that are  
able to return multiple values via input pointers, and this cannot be  
reproduced easily in Java (e.g., if a community detection routine uses  
a pointer to a C double to return the modularity of the obtained  
partition if the pointer is not null, this cannot be translated  
directly to Java as there's no such thing as a pointer in Java).
Anyway, if you take a look at the igraph source tree, we have an  
interface generator written in Python that is responsible for  
producing a large amount of glue code between R and C. I started  
adapting the interface generator to be able to do the same for Java  
and C, and this is already used in my experiments with a Java  
interface for igraph. This means that you will need a working Python  
interpreter to use my code.

--
Tamas