Issue 1289:  How to put a generic CORBA exception into an Any (cxx_revision)
Source:  (, )
Nature:  Uncategorized Issue
Severity: 
Summary: Summary: There doesn"t appear to be any way to place an arbitrary exception into
 an Any with the current C++ mapping.  This is necessary to make the DSI
 usefulThe spec needs to be extended to provide an inserter function to insert
 a CORBA::Exception into an Any.  I know that this has potential issue
 for the inserter function to determine the correct typecode for the
 exception, but I can"t think of any other way to get an exception into
 the Any when all I"ve got is a CORBA::Exception * without having to
 enumerate each possible exception by calling _narrow.
 

Resolution: 
Revised Text: 
Actions taken:
April 29, 1998: received issue
February 19, 1999: closed issue, resolved
Discussion: 

End of Annotations:=====
Return-Path: <jon@floorboard.com>
Sender: jon@floorboard.com
Date: Tue, 28 Apr 1998 22:48:20 -0700
From: Jonathan Biggar <jon@floorboard.com>
To: cxx_revision@omg.org, issues@omg.org
Subject: New issue re: how to put a generic CORBA exception into an
any

There doesn't appear to be any way to place an arbitrary exception
into
an Any with the current C++ mapping.  This is necessary to make the
DSI
useful, for example:

class MyDynObject : public PortableServer::DynamicImplementation {
public:
	void invoke(CORBA::ServerRequest_ptr request);
};

void MyDynObject::invoke(CORBA::ServerRequest_ptr request)
{
    ...	
    try {
	...
    }
    catch (CORBA::Exception &e) {
	CORBA::Any exc;
	
	exc <<= e;			// this is illegal!
	request->set_exception(exc);	// but I want to do this!
    }
}

The spec needs to be extended to provide an inserter function to
insert
a CORBA::Exception into an Any.  I know that this has potential issue
for the inserter function to determine the correct typecode for the
exception, but I can't think of any other way to get an exception into
the Any when all I've got is a CORBA::Exception * without having to
enumerate each possible exception by calling _narrow.

-- 
Jon Biggar
Floorboard Software
jon@floorboard.com
jon@biggar.org