DevForce Community Forum : Create EntityManager while specifying target database

Create EntityManager while specifying target database : Hi katit;Yes, that is correct....

Thu, 15 Sep 2011 13:43:13 -700

Author: DenisK
Subject: 2959
Posted: 15-Sep-2011 at 1:43pm

Hi katit;

Yes, that is correct. We use MEF to discover the IDataSourceKeyResolver interface as well as a bunch of others. Here's the list if you're interested.

http://drc.ideablade.com/xwiki/bin/view/Documentation/extend-customize

Create EntityManager while specifying target database : I like it how you guys thought...

Wed, 14 Sep 2011 11:35:17 -700

Author: katit
Subject: 2959
Posted: 14-Sep-2011 at 11:35am

I like it how you guys thought about everything. I found this example:

http://drc.ideablade.com/xwiki/bin/view/Documentation/code-sample-custom-datasourcekeyresolver

My question is.. Since I didn't find where it's referenced from. Do you use MEF to find interface? I'm little confused because this implementation just hangs in there and I don't see [Export] attribute on this custom class?

Create EntityManager while specifying target database : I'm working on SaaS application...

Wed, 14 Sep 2011 11:21:05 -700

Author: katit
Subject: 2959
Posted: 14-Sep-2011 at 11:21am

I'm working on SaaS application where each customer will have separate database. I store all database connection info in one central system database.

How do I "tell" EntityManager which connection string to use depending on parameter? In EF it's kind of easy, I just override constructor and build new Connection string.