This soltution might be overkill Buta webservice is really what you want. Amazon has one design just for this.. workflows Called Simple WorkFlow
http://aws.amazon.com/swf/faqs/ Like every webservice Amazon provides there is a free level, and paid level and there is a pretty steep learning curve. Just thought I would toss out a solution not previously mentioned. Cloud based workflows. Bob Lee -----Original Message----- From: ProfoxTech [mailto:profoxtech-boun...@leafe.com] On Behalf Of Ted Roche Sent: Tuesday, June 24, 2014 4:44 PM To: profoxt...@leafe.com Subject: Re: Is there a better way... On Tue, Jun 24, 2014 at 6:11 PM, Mike Copeland <m...@ggisoft.com> wrote: > > I was simply 'wondering out loud' if such a process was possible > (communicating upstream from server) between MariaDB and VFP. I can > see a lot of places it would be useful, but what triggered the > question is a simple scenario where a manager would be monitoring as > minions process inventory returns...looking for anomalies and > incomplete data. The returns are on-going all day long and can > sometimes not 'happen' for several hours, or there can be two dozen in > 10 minutes. It is really nothing more than a simple monitoring process. > > OK, sorry if shot you down on purely pragmatic reasons. It's a more complex solution, possibly more fragile, and would require a lot of checks and balances to get right. (As Gene pointed out, what if they client crashes, etc.). MariaDb doesn't have an API for poking the clients; it's a database server designed to respond to incoming requests. However, there is always a way :) There is an API for writing your own extensions. You could hook up an extension to fire on a database trigger. And that extension could be designed to "poke" a registered client -- you'd have to think about what protocols to use, how to get the message to VFP, how VFP would respond, etc. If you had MariaDB running on a Windows-ish platform, it could likely use DDE or OLE Automation (DCOM) to talk to a matching VFP app. Like I said, lots of infrastructure, lots of edge cases to write error-trapping for, managing stacks of callbacks, etc... --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html --- [excessive quoting removed by server] _______________________________________________ Post Messages to: ProFox@leafe.com Subscription Maintenance: http://mail.leafe.com/mailman/listinfo/profox OT-free version of this list: http://mail.leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/001b01cf900b$01c01800$05404800$@com ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
