[omniORB] UserException

[Steven W. Brenneis]

agonne - Andrew Gonnet wrote:
> 
> I can't get UserExceptions thrown in my implementation code to be
> returned to the client - all that happens is a SystemException is
> thrown at the client end. As far as I can tell, I'm doing what my
> Corba books and the Corba spec. say.
> 
> Does anybody have example idl, C++ client and C++ implementation code
> showing how to use a class generated from an idl "exception"
> containing, say, a "short" and a "string", or similar?
> 
> To be complete, I'm throwing the class generated from:
> 
> exception MyException
> {
>         short errorCode;
>         string errorString;
> };
> 
> using:
> throw MyException( 10, CORBA::string_dup( (const char*) "test" );
> 
> when I get the SystemException thrown at the client.
> 
> (The Client is on a NT4.0 PC compiled using VC++ V6.0 and the
> implementation on a Digital unix V4.0 (Rev. 1091) Compaq server
> compiled using cxx V6.1-029)
> 
> Thanks,
> 
> Andrew Gonnet

Do you use the raises keyword on the member function(s) which throw the
exception?

Example:

exception MyException {
  short errorCode;
  string errorString;
};

interface MyInterface {
  void MyFunction()
    raises(MyException);
};

The raises keyword lets IDL know that the function may throw a User
Exception and generates the appropriate code.