[omniORB] IDL interface insufficient

[David]

Hi Michael,

This is a great tip. Thanks a lot.

/David

On Thu, Apr 17, 2008 at 4:35 PM, Michael <omniorb at bindone.de> wrote:

> Hi David,
>
> seems like you're using the default poa. What you could do is the
> following:
>
> Assuming you a method that accepts a ref reference:
>
> void MyObject::MyMethod(RemoteProxy_ptr p)
> {
>  try
>  {
>    PortableServer::Servant servant = poa_->reference_to_servant(p)
>    if (RemoteProxy_i* rp = dynamic_cast<RemoteProxy_i*>(servant))
>    {
>      WrappedObject* o = rp->getWrapedObject();
>    }
>  }
>  catch(...)
>  {
>    // there are different (meaningful) exceptions emitted, check the
> standard
>  }
> }
> (this assumes, you stored the poa used somewhere - if it's the default poa
> you could also
> get it through resolve_initial_reference)
>
> This is also nice, because you can verify that the servant is really out
> of this oa (and
> not a remote object).
>
> cheers
> michael
>
> David wrote:
> > Hi,
> >
> > I'm having a problem with my IDL interface. I have a RemoteProxy class
> that
> > wraps an object on the server. On the server side, the factory creating
> the
> > RemoteProxy object needs to inject the wrapped object somehow. The
> interface
> > of RemoteProxy is however specified in IDL, and I can't specify my
> wrapped
> > object in IDL, and hence can't pass it as an argument to an
> IDL-specified
> > method.
> >
> > So far, I have been able to add a RemoteProxy_i.setWrappedObject(
> > WrappedObject *o ) method to the RemoteProxy_i class, which is my object
> > implementation class (inheriting from POA_RemoteProxy). So when I create
> it,
> > I can do:
> >
> > RemoteProxy_i *rp = new RemoteProxy_i();
> > rp->setWrappedObject( o );
> > poa->activate_object( rp );
> > RemoteProxy_ptr ref = rp->_this();
> >
> > Once I've created the reference object "ref", "rp" is not saved. Now, my
> > problem is that I can't get the wrapped object "o" back from "ref",
> because
> > "ref" only implements the IDL interface. How should I solve this? Do I
> need
> > an external data structure, mapping references to "wrapped objects"
> (except
> > they wouldn't be mapped in an object-oriented sense). Any help is
> > appreciated.
> >
> > /David
> >
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > omniORB-list mailing list
> > omniORB-list at omniorb-support.com
> > http://www.omniorb-support.com/mailman/listinfo/omniorb-list
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.omniorb-support.com/pipermail/omniorb-list/attachments/20080417/37475e0d/attachment.htm