RE: Changing column names? -- MIDRANGE-L

Tom,

I can confirm that there is no server-side code, and actually the client
side it incredibly light. But I don't think (in fact I'm rather sure) the
library list feature isn't unique to their driver. When you connect to the
AS/400 the server-job you get is authenticated using the user/password you
provide and the library list is set to the library list of the user. There
is no need to track the jobs since each connection to the AS/400 has it's
own server job. This should be the same on the Client Access drivers too,
no?

-Walden

------------
Walden H Leverich III
President
Tech Software
(516)627-3800 x11
WaldenL@TechSoftInc.com
http://www.TechSoftInc.com



-----Original Message-----
From: thomas@inorbit.com [mailto:thomas@inorbit.com]
Sent: Tuesday, November 20, 2001 10:41 PM
To: midrange-l@midrange.com
Subject: RE: Changing column names?


Walden:

I can't dispute what you say since I haven't used that driver and I can
think of a couple possible techniques for accomplishing it. But it seems it
would have to add overhead that would be unacceptable to many.

The provider's website claims that standard server connections are used and
that _no_ software needs to be installed on the server. This means that the
middleware piece must be either parsing all requests to locate object names
and resolving all necessary object references for the connecting user (maybe
by some kind of remote program calls to APIs to retrieve the job description
for the user, then extracting the library list and then retrieving the
object library) and modifying the requests on the fly or somehow setting the
library list for the server jobs that service each request (and of course
keeping track so it knows when a given request for a given user might be
serviced by a different server instance which would require setting the
library list again; possibly also tracking when a *USRPRF or *JOBD is
changed so that a different library list is needed).

This is an impressive piece of middleware. Now I have to try this out just
to see what happens.

Tom Liotta

On Tue, 20 November 2001, "Walden H. Leverich" wrote:

> Library lists (at least when using the HitSoftware OLE/DB drvier) are
> driven from the job description of the user profile you use to login.
> We use multiple user profiles with multiple library lists all the
> time.
>
> -----Original Message-----
> From: rob@dekko.com [mailto:rob@dekko.com]
>
> First of all there is no concept of a library list in C/S programming.
> You have to bury that in your connector

--
Tom Liotta
The PowerTech Group, Inc.
19426 68th Avenue South
Kent, WA 98032
Phone  253-872-7788
Fax  253-872-7904
http://www.400Security.com


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