I am pretty much locked into dbXML, not many open source XML databases...
Hey! What's that supposed to mean?
One of the 'theoretical' beauties of CORBA, especially post-IIOP, but
even with GIOP, is that it should no longer matter what ORB code is at
each end point, so long as IIOP is being used as the wire protocol
between them. There shouldn't be any reason why you couldn't use the
JacORB libraries to talk to a server being exposed using OpenORB. Of
course, the complexity and generally nastiness of CORBA doesn't make
this easy. It is definitely possible to do.