[omniORB] transparency question
Michael Stokes
stokes@ERC.MsState.Edu
Wed, 8 Apr 1998 11:31:14 -0500 (CDT)
There is a generic question and probably should be posted in another
group, but I'm going to offer it up anyway.
I am writing a scientific application where I will have many thousands of
objects called cells, nodes, edges, etc. In general, these objects will
not be shared and therefore do not need to be "CORBISIZED". However, at
boundaries, I want to share edges, nodes, and cells and would like to use
CORBA to do this, but, I do want the sharing to be transparent to the
application. Based on what I've learned, I would have to use CORBA var
types and casts in the non-shared object types, and I find this awkward at
best.
I thought I would do using the following example. I will define a class
called point with the following c++ header. Note that I use CORBA
symantics, but it just a simple C++ class.
....
class Point {
protected:
double _x[3];
public:
Point();
Point( CORBA:Double x, CORBA::Double y, CORBA::Double z);
void getX( CORBA::Double& x, CORBA::Double& y, CORBA::Double& z);
};
...
I would then define an entity called an SPoint using the following...
interface SPoint {
void getX( out double x, out double y, out double z);
};
with the implementation C++ header looking like the following...
#include "point.h"
#include "spointSK.cc"
class SPoint : public virtual Point, _sk_SPoint {
};
The assumption here is that it is possible to write the CORBA
implementation using a composite of a "vanilla" C++ object and a CORBA
stub implementation.
Questions...
1) Is it possible to do this at all?
I would appreciate any positive or negative (though constructive)
comments.
Thanks
Mike