Solved

Asynhronic response from Web Service

Posted on 2008-06-26
4
229 Views
Last Modified: 2010-04-15
I need to generate XML from myWebService to another Web Service but only when Table.field in database is with value "0". When myWebService get information that "field" is with value "0" or field are inserted, myWebService need to generate XML and change Table.field value to "1".

How would myWebService know when the value of "field" is changed to "0" or inserted in Table with value "0" (I need some methodology which would trigger my Web service at any time when it occurs - Web Service in Web Service).
Some code example would be appropriate.

0
Comment
Question by:novabankaee
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 19

Expert Comment

by:elimesika
ID: 21877100
HI

You have several options

1) pooling - creating  a timer object and check for the value each X seconds

2) Use Cache Dependency on the table
http://msdn.microsoft.com/en-us/library/ms178604.aspx

3) create a CLR stored procedure that will be called from a trigger on the table

http://msdn.microsoft.com/en-us/library/ms131094.aspx


I highly recommend the 2nd option

0
 

Author Comment

by:novabankaee
ID: 21881718
I don't use MS Sql Server so 2nd and 3rd options are not in options.
I use Informix database. This is more database then Visual studio (C#) releated problem. Isn't it?
0
 
LVL 19

Accepted Solution

by:
elimesika earned 500 total points
ID: 21891678
HI

OK, than you are left with the 1st option , this is the easiest solution to implement and it might meet your needs if the update rate is not extensive.

Another option, if you have any control on the service that updates the service, you may use messaging to send a message from updating service to the other service.
0
 

Author Comment

by:novabankaee
ID: 21916491
How and where to implement Timer Object in WebServis?

public class MyWebService : System.Web.Services.WebService
    {
 
        public MyWebService()
        {
        }
 
        [WebMethod]
        public string WebMethod1()
        {
            //Business Logic
        }
 
        public void PrivateMethod1()
        {
            //Business Logic
        }
   }

Open in new window

0

Featured Post

Get Actionable Data from Your Monitoring Solution

Your communication platform is only as good as the relevance of the information you send. Ensure your alerts get to the right people every time with actionable responses. Create escalation rules that ensure everyone follows the process and nothing is left to chance.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction In my previous article (http://www.experts-exchange.com/Microsoft/Development/MS-SQL-Server/SSIS/A_9150-Loading-XML-Using-SSIS.html) I showed you how the XML Source component can be used to load XML files into a SQL Server database, us…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have. In this…
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…

719 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question