472,962 Members | 2,525 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 472,962 software developers and data experts.

Workflow Callback

Hi all,

My problem is this... I need to somehow communicate the completion of a workflow back to the calling application. The scenario is as follows:

I have a "generic" workflow engine, utilising Windows Workflow Foundation. This part works fine, no hassles.

The idea of the workflow engine is that we can integrate a workflow authorisation process easily into any application with minimal work.

The problem lies in the "generic" part of the workflow engine (a windows service). A 'calling application' tells the workflow service, through a web service, that a workflow needs to be started with certain parameters. The workflow then goes through its paces and the workflow then either completes after a certain percentage of authorisations or rejections, or the time out is reached and the workflow is automatically rejected. From here, the 'calling application' needs to be notified of the end result of the workflow. Currently it is being done by adding functionality to the workflow engine, which makes it non-generic.

So, my question is, what would be the best way to notify calling applications when a workflow has completed and what the end result was?

And then just some notes on the environment :-
  • There are configuration options available on the workflow side, but essentially we want to try and keep it as generic as possible, ie. not have to do web service calls back to the calling application
  • Ideally I would like to avoid having to create any windows services to poll, say, a database, to look for workflow results
  • The workflow engine should be able to run completely independently, ie on its own server, with its own database

So, in other words, what would be the best way for a calling application to find out if a workflow process has completed, and what the result was, through a web service?

Your ideas and input would be appreciated!
Oct 3 '07 #1
0 1637

Sign in to post your reply or Sign up for a free account.

Similar topics

by: Paolo Losi | last post by:
Hi all, I'm pretty new to the python language so please excuse me if this is FAQ... I'm very glad to be part of the list! :-) I'm looking into a way to implement a generic workflow framework...
by: Equis Uno | last post by:
Hi there, I downloaded OWB_9. from here: http://otn.oracle.com/software/products/warehouse/index.html In the above download I found OWB installation documentation. In...
by: Bevertec | last post by:
May 26 2004 Our client is a major bank in Jamaica and they have a contract requirement for a professional with the following skills. This is a 6 months contract. It would be 3 weeks/month in...
by: Yatendra Khandelwal | last post by:
hi, I am a newbie to this (exchange server and workflows) and I am trying to create a test workflow app using workflow designer (office developer) and exchange 2003. I have created a workflow...
by: ABC | last post by:
My client request a workflow solution. They want the solution provide as: 1. Has a workflow diagram interface presents their roles, work and tasks. 2. Support .NET technologies for developers to...
by: Stylus Studio | last post by:
Hi Everyone, A new XML tutorial by Dr. Kay was just released, "Buiding XML Workflow Applications". Dr. Michael Kay argues that the bulk of the application logic required for typical XML...
by: Claudia Fong | last post by:
Hi I was using a console application to host the windows workflow and when I change to winforms, I don't know how to do it... I pass the parameters into the workflow from the winform and is...
by: =?Utf-8?B?R3JhaGFt?= | last post by:
I've added 2 tracking services to the wf runtime; one is the standard SqlTrackingService: trackingService = new SqlTrackingService(<trackingConnectionString>); <workflow...
by: Grzegorz Staniak | last post by:
Hi, In a couple of weeks I'm starting a medium-size project (using a web framework) involving a workflow implementation. Are you aware of any open source workflow engines/libraries that I could...
by: DJRhino | last post by:
Was curious if anyone else was having this same issue or not.... I was just Up/Down graded to windows 11 and now my access combo boxes are not acting right. With win 10 I could start typing...
by: tracyyun | last post by:
Hello everyone, I have a question and would like some advice on network connectivity. I have one computer connected to my router via WiFi, but I have two other computers that I want to be able to...
by: NeoPa | last post by:
Hello everyone. I find myself stuck trying to find the VBA way to get Access to create a PDF of the currently-selected (and open) object (Form or Report). I know it can be done by selecting :...
by: NeoPa | last post by:
Introduction For this article I'll be using a very simple database which has Form (clsForm) & Report (clsReport) classes that simply handle making the calling Form invisible until the Form, or all...
by: Teri B | last post by:
Hi, I have created a sub-form Roles. In my course form the user selects the roles assigned to the course. 0ne-to-many. One course many roles. Then I created a report based on the Course form and...
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 1 Nov 2023 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM) Please note that the UK and Europe revert to winter time on...
by: nia12 | last post by:
Hi there, I am very new to Access so apologies if any of this is obvious/not clear. I am creating a data collection tool for health care employees to complete. It consists of a number of...
by: isladogs | last post by:
The next online meeting of the Access Europe User Group will be on Wednesday 6 Dec 2023 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, Mike...
by: GKJR | last post by:
Does anyone have a recommendation to build a standalone application to replace an Access database? I have my bookkeeping software I developed in Access that I would like to make available to other...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.