Re: Setting up a Java Callback to Ada

[kevin.brugh@lmco.com (Kevin Brugh)]

Yes, a JNI.  I have Aonix 95 that uses JNI to interface with Java
code.  But, since Ada doesn't have Objects/Method like Java.  Ada
cannot handle Java interfaces, which Weblogic and many other Java
Classes use a lot of.  I figured if I could pass the access of the
procedure to Java and it would save it, then when my method was
invoked/notified I could use that call back procedure.  It would be
nice if Java could call a Ada procedure that would call my callback
procedure directly. I have looked at using a C/C++ wrapper for Java,
but I would like something more simpler and direct.

"Marc A. Criley" <mcqada95@earthlink.net> wrote in message news:<3C49BE2C.F114478D@earthlink.net>...
> Kevin Brugh wrote:
> > 
> > I need to create some Ada code that will call Java code to set up a
> > callback.  I need the Java side to save the Callback procedure I sent
> > it. When a event is triggered, specifically an OnMessage call from
> > Weblogic. The OnMessage method in my java code will use that saved
> > Callback Procedure and call my Ada procedure.  Any suggestions??
> 
> Are you talking about invoking a native method written in Ada?
> 
> Or can the Ada be compiled by JGNAT into JBC, which means it can be
> treated pretty much like any other Java method?  (See the JGNAT docs for
> info on invoking Java from Ada and vice versa.)
> 
> Marc A. Criley
> Consultant
> Quadrus Corporation
> www.quadruscorp.com