Re: Are CORBA interfaces immutable?????

[Ron Jones <ronjones xnet com>]

On Thu, Aug 31, 2000 at 12:24:52PM +0200, Diego Sevilla Ruiz (dsevilla@um.es) wrote:
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> Hi, Ron and all:
> 
> Ron Jones wrote:
> 
> > On Tue, Aug 29, 2000 at 10:31:43PM -0700, Maciej Stachowiak wrote:
> > >
> > > Nontheless, I think we really need to figure out some kind of solution
> > > for interface versioning. I think it's pretty clear a lot of
> > > interfaces being written now will have to change in the future.
> > >
> > >  - Maciej
> >
> > I think that the COM way is actually pretty reasonable. Interfaces do not
> > change, period (implementations do, of coarse). If you need to change your
> > interface, then you rename it, perhaps deriving from the previous interface
> > if you are just adding methods, e.g.
> >
> > interface IClassFactory2 : IClassFactory
> >
> 
> Why renaming and not using the IDL versioning? This is the COM way. But IDL
> defines a version number using #pragma directives within the IDL file, isn't
> it?
> 
> #pragma version 1.1
> 
> and so on. IR identifiers are something like
> 
> IDL:Package/SubPagkage/Interface:version
> 

How does this translate into the C binding? Can you use both interfaces
in the same program?

Ron