Calling Java Code from CPython (1.5.2 or 2.0)

[Keith Ray]

In article <93mdfs$g7q$1 at nyheter.chalmers.se>, "Dario Lopez-Kästen" 
<dario at _no_spam_.ita.chalmers.se> wrote:

> Hello!
> 
> <newbie class="clueless">
> 
> I would like to know if it is possible to call Java Code from CPython (as 
> in
> not Jython or JPython). I am asking this, because i'd like to be able to
> experiment using JDBC in conjunction with python; specifically, I want to
> use Zope and JDBC drivers on Solaris/Linux and that "other" operating 
> system
> to connect to Oracle, MIMER and some other DBMSs we have.
[...]

I suppose one could wrap the JNI functions with CPython module...

I could also imagine a CPython module using JNI functions and Java 
reflection to do a more general-purpose bridge for python. Create python 
objects that are bridges to java objects. Forwarding python method calls 
to the java objects, converting basic CPython types into Java 
equivalents for argument passing...

Then to be able to pass python objects into java methods, you'd want the 
bridge to also go the other way, this is a little fuzzier in my 
imagination... perhaps by using instances of a java wrapper object that 
makes calls via JNI to the Python reflection API...?

Making inheritance work on both sides seems like the real kicker... 
might require generating java and source code and compiling it.

I bet it wouldn't take more than 2 or 3 person-years (for someone more 
motivated than I) to complete.   :-)

I would be interested to know if someone has already done this.

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