Java/EJB talking to COM

[chris.r.lewis]

This is an age-old problem, but one to which we don't seem to be able to get an easy answer:

How can we get a Java EJB object talking to a COM component? We have no need to propogate a transactional context, so it *should* be straightforward! We are using JBoss 2.4.4, moving to 3.0 soon.

Solutions that I have seen already, but that don't seem ideal, are:

* Use a product called JIntegra - we have rejected this on grounds of cost.
* Wrap the COM object in a J++ object and run in the Microsoft JVM, then
have the native Java talk to it through RMI. This seems too much of a hack,
and perhaps fraught with incompatibility issues.

Any help is much appreciated.

[jmoring]

Try Jacob at http://danadler.com/jacob

I have not used it yet but its been around for a while.
Share your results.


Good Luck

[chris.r.lewis]

Thanks for this.

I have since solved the problem with a tool from the IBM Alphaworks site called Bridge2Java. It seems to work very well, and is easy to use.

After trying for some time to get an answer to this problem from the web, I found Bridge2Java in an excellent Wrox book called "Professional J2EE EAI" - which included a reference to the Jacob project that you mention.

[jmoring]

Make sure you check out the license for that. As I remember it has an unusual license.

Jim