> From: A mailing list for Enterprise JavaBeans development
> [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED]
> > If someone would be kind enough to write a C++ implementation of the
> > valuetypes for Java 2 collections and make it open source, that would
> > do the EJB/CORBA community a great service at least in respect of
> > EJB->C++ interoperability. It would be great for a university research
> > project. Until such time, every single customer trying to achieve
> > EJB->C++ interoperability using the RMI/IIOP mapping has to reinvent
> > the wheel! This is not far off being totally ridiculous!
>
> This would be great and I think sooner or later this will happen.
> Hey your EJB vendors. Sponsor some Open-Source project doing exactly
> this ! Mybe some folks from MICO or TAO would be interested !?
TAO does that already : their IDL compiler will automatically generate the
implementation (as stream inserters) to marshall valuetypes. All you have to do
is multiple inherit the relevant classes and you're done.
Interoperability between C++ and Java is simply not realistic without such a
support.
> We go even one step further and combine this with a COM wrapper
> so we can access our EJBs with VisualBasic or Delphi.
> That's another point where work is needed.
> OMG: Extend the COM/CORBA Interop spec to support valuetypes !
That would be an extremely complex specification to come up with, and I believe
it would be overkill. A better approach IMO is to wrap your EJBs in a thin COM
layer, thus making them full COM citizens. We have that today and quite a few
customers are already using Visual Basic to access EJBs.
--
Cedric
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