Re: cpp: Wrapping C server implementations.

[murrayc t-online de (Murray Cumming)]

On Thu, 2002-04-18 at 00:02, Murray Cumming wrote:
> On Thu, 2002-04-18 at 00:43, Michael Meeks wrote:
> > On Tue, 2002-04-16 at 14:32, Murray Cumming wrote:
> > > Obviously the C++ equivalent should inherit from the generated 
> > > POA_Bonobo::ControlFrame skel, just like a real C++ CORBA server.
> > 
> > 	Why ?
> 
> Because a server in C++ should look like a server in C++.

And this allows something very practical: implementation inheritance.
e.g. if our corba interface is this

interface MurrayControl : Bonobo::Control
{
  void someMethod();
}

then we can implement it like so, reusing the existing Bonobo::Control
server implementation:

class MurrayControl_impl :
  virtual public Bonobo::Control_easyimpl, //wrapped C server.
  virtual public POA_MurrayControl //skel for MurrayControl.
{
  void SomeMethod(); //implement the method.
  
  //We get the Bonobo::Control methods implemented for free.
}

So I think I've made up my mind - We implement a new server in C++,
delegating to the C-implented server via a C++ client ref. And we'll
worry about performance later if it proves to be a problem.

-- 
Murray Cumming
murrayc usa net
www.murrayc.com