DevForce Community Forum : Where's CheckpointManager? http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2010 : Where's CheckpointManager? Tue, 21 Apr 2026 10:40:03 -700 Thu, 03 Jun 2010 17:00:33 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=1740 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Where's CheckpointManager? : Here's one way to do this: 1)... http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=7140#7140 Author: ting
Subject: 1740
Posted: 03-Jun-2010 at 5:00pm

Here's one way to do this:

1)  Create a secondary EntityManager.
2)  Import the Entities you think you'll need for the workflow from the primary EntityManager to the secondary EntityManager.
3)  Start the wizard, make changes to the objects in the secondary EntityManager.
4a)  If you want to discard the changes.  Just "throw out" the secondary EntityManager.  It will get garbage collected when all references are gone.  The primary EntityManager still has the original copy of the Entities.
4b)  If you want to keep the changes.  Import the cache from the secondary EntityManager to the primary EntityManager with a MergeStrategy of OverwriteChanges.
 
So, basically, you can save/replicate the state of an entity cache by importing the Entities to another EntityManager, or by using the Entitymanager.CacheStateManager to save it to a stream.
 
]]> Thu, 03 Jun 2010 17:00:33 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=7140#7140 Where's CheckpointManager? : Along the same lines, what is... http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=7138#7138 Author: mikewishart
Subject: 1740
Posted: 03-Jun-2010 at 4:08pm

Along the same lines, what is the recommended way to handle saving the state of the entity manager before going into a wizard and having it rollback if the user cancels?  The CheckpointManager seemed to be the way to do this.  Should I just figure out what entities were added and remove them?  How do we undo changes to entities that were modified?

Thanks,
Mike
]]> Thu, 03 Jun 2010 16:08:18 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=7138#7138 Where's CheckpointManager? : No, we were able to simplify the... http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=6660#6660 Author: ting
Subject: 1740
Posted: 26-Apr-2010 at 3:55pm

No, we were able to simplify the configuration so that the <edmKeys> are no longer needed.  Just make sure the database information is in the <connectionStrings> node of the app.config.

]]> Mon, 26 Apr 2010 15:55:33 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=6660#6660 Where's CheckpointManager? : What is the recommend way to use... http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=6622#6622 Author: DavidKozikowski
Subject: 1740
Posted: 23-Apr-2010 at 10:59am

What is the recommend way to use Multi entity managers with an application?

 

I have a sql db and a oracle db that I'm moving data to and from.

 
I have 2 entity managers.
 

I have created ADO.Net Entity Diagrams for both.

 

Do I have to use the<edmKeys> config format to use them?

 
 
 
 
]]> Fri, 23 Apr 2010 10:59:57 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=6622#6622 Where's CheckpointManager? : Hi Chuck, The one thing we... http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=6609#6609 Author: ting
Subject: 1740
Posted: 22-Apr-2010 at 5:03pm

Hi Chuck,
 
The one thing we did remove in DevForce 2010 was the CheckpointManager - sorry for the surprise.  There were few people using it, and we now recommend the more general approach of using multiple EntityManagers and importing entites between them.
 
]]> Thu, 22 Apr 2010 17:03:04 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=6609#6609 Where's CheckpointManager? : CheckpointManager used to be... http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=6596#6596 Author: chuckc
Subject: 1740
Posted: 21-Apr-2010 at 7:59pm

CheckpointManager used to be accessible from EntityManager in previous versions, but is no longer there in DevForce 2010.  Has it been discontinued, or re-located?
]]> Wed, 21 Apr 2010 19:59:06 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1740&PID=6596#6596