StrataFrame Forum » StrataFrame Application Framework - V1 » Business Objects and Data Access (How do I?) » Plug-In Architechture - Using Strataframe in Dynamic Enviroment

Plug-In Architechture - Using Strataframe in Dynamic Enviroment

Richard Keller — Fri, 18 Jan 2008 12:46:15 GMT

I am looking for an approach to Datasource access with using a Strataframe BO in another plug-in enviroment ( these enviroments dynamically load assemblies using CreateInstance ). The BO may be called from a Form or User Object and configuration of the Datasource connection string would be done prior to usage. Maybe Ben or Trent have an idea here. My question is where should I have the Datasource logic placed?

The first option that came to mind is to modify my base business object to instantiate the Datasource if it is not found. I can do this through a shared class, module, etc. if necessary. This would work like the way the AppMain functions and loads the Exeception and Datasource objects. Any comments, ideas, etc?

Thanks,

Richard

RE: Plug-In Architechture - Using Strataframe in Dynamic Enviroment

Trent L. Taylor — Fri, 18 Jan 2008 12:46:15 GMT

[quote]My question is where should I have the Datasource logic placed?[/quote]

It looks like you have the right idea. The DataSources is a shared collection, so you could create a base BO that all of your business objects inherit from. In the constructor of the BaseBO, you could then test to see if the connection string(s) have been created:

[codesnippet]If Not MicroFour.StrataFrame.Data.DataBasics.DataSources.ContainsKey("") Then
'-- Add your data source to the collection
End If[/codesnippet]

But it looks as though you were already heading down the right road :)