Re: Calling Java Methods from Ada

[Bruce or Tracy Jacobs <bljacobs2@mchsi.com>]

I second that request.  I have need to call Java from Ada 
*without converting Ada to Java*.  Has anyone developed
bindings or I/F to make this possible without code conversions?

Bruce

The Alchemist wrote:
> 
> Hello,
> 
>         A group of us are trying to write a Java GUI to interface to some Ada
> APIs for a class project. We've spent several weeks trying to get this
> to work. We initially started with CORBA, but couldn't get Adabroker
> working easily.
>         We then tried to go with JNI which lets us call Ada functions. However,
> we need to register callback functions to the pre-existing Ada APIs (to
> receive events coming from existing Ada infrastructure that will then
> call Java methods to update GUI components). Our callback functions
> would like to call Java code, but this doesn't seem possible with a JNI
> connection (JNI needs a reference to a JNIENV that it only gets when
> Java calls a JNI method).
>         Is there any way to call Java methods from Ada? Similar to the JNI method
> for calling Ada from Java? Or do you think we will need to go with an
> intermediary technology like CORBA or SOAP?
>         Your help would be greatly appreciated as we have spent many hours trying
> to figure this one out. Our project's success depends on it!
> 
> Thank You
> 
> please reply by post and if possible email also to
> junkymail50@delete.yahoo.com (delete the word delete)