Also there is a hierarchy if two UDCs have the same name:
 
     1) user
     2) account
     3) system.
 
     So if you have a system UDC called FOO and a user UDC with the same
     name but differing function, the user UDC will win out.  However, I'm
     not sure which get "validated" first at logon.  I think the order is
     reversed then, which is something to keep in mind if a user UDC will
     be calling a system UDC.
 
     Someone out there knows this for certain.  Anyone?
 
     -- Marise
 
 
______________________________ Reply Separator _________________________________
Subject: Re: UDC's
Author:  Don Harrington <[log in to unmask]> at INTERNET
Date:    1/19/96 1:37 PM
 
 
On Fri, 19 Jan 1996, Mary E. Plath wrote:
 
> From: mplath
>
> I believe it is correct that UDC's can call other UDC's ?
> Is there a limit to the number of levels of calling?
> Does the called UDC have to be after the caller UDC
> in the file ?
> Thanks
>
1) Yes, UDCs can call other UDCs.
2) Don't know; but I'm sure someone on this list does!
3) Yes, the called UDC must be after the calling UDC either in the same
file or in the file list.  This is due to the way UDCs are accessed; they
can only look forward, not backward.
 
Don  Harrington                         Boeing Commercial Airplane Group
(206) 931-4457 voice                    P. O. Box 3707 M/S 5J-34
(206) 931-9085 FAX                      Seattle, WA  98124-2207
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