Re: [Swig-user] passing a C++ array, vector, or list into Java

[William S F. <ws...@fu...>]

Dave Yost wrote:
> Hi.
> 
> I need to provide a simple api through which existing C++ code can 
> pass some data to my Java program.  The C++ code is heavily-templated 
> and complex and does not lend itself to being swigged, so my plan is 
> for the C++ code to feed the data to the Java program through this 
> hopefully-simple little api.
> 
> Ideally, I would like swig to produce Java equivalent to this:
> 
>    class State {
>      // there can be 0 or more elements in these arrays
>      Node[] foo;
>      Node[] bar;
>    }
> 
>    class Node {
>      int a;
>      int[] b; // 0 or more elements in this array
>      String c;
>    }
> 
> The arrays could be stl lists or vectors or whatever will be 
> swiggable into data structures I can read from Java.
> 
> I am not fluent in C++.  I have failed to figure this out from the 
> documentation and have come up with nothing in the examples.  Could 
> someone please put me out of my misery and show how this would be 
> done?
> 

I don't know of any mappings from stl list/vector to Java arrays,
however there are mappings in std_vector.i from std::vector to a Java
class that looks and feels like a java.util.Vector. There are mappings
from C arrays to Java arrays, read up about arrays_java.i.

William