DevForce Community Forum : Transaction in DevForce http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce Classic : Transaction in DevForce Wed, 10 Jun 2026 07:18:57 -700 Fri, 29 Oct 2010 15:00:56 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=2268 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Transaction in DevForce : That's the standard behavior... http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8987#8987 Author: sbelini
Subject: 2268
Posted: 29-Oct-2010 at 3:00pm

That's the standard behavior if you simply call
 
_em.SaveChangesAsync(...) //if saving telefone fails, pessoa and email will be rolled back
 
Now, if you want to reject the changes in your entity manager, you need to handle the exception accordingly:
 
_em.SaveChangesAsync(savedArgs => {
    if (savedArgs.HasError) {
      // handle exception - reject changes here
    }
  });
]]> Fri, 29 Oct 2010 15:00:56 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8987#8987 Transaction in DevForce : Hi Silviofor ex- we have (pessoa,email,telefone)... http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8984#8984 Author: bala
Subject: 2268
Posted: 29-Oct-2010 at 12:06pm

Hi Silvio

for ex- we have (pessoa,email,telefone) and operation fail on saving telefone
we have to reject changes in pessoa and email too ie rollback in both entities..

I think you got clear view now...


Thanks



]]> Fri, 29 Oct 2010 12:06:44 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8984#8984 Transaction in DevForce : Bala, By default, saves are transactional,... http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8983#8983 Author: sbelini
Subject: 2268
Posted: 29-Oct-2010 at 11:53am

Bala,

By default, saves are transactional, i.e. when you try to save your 3 entities (pessoa, email, telefone), DevForce processes them together as a single unit of work. Either all 3 saves succeed, or they are all rolled back.
 
If I understand, you want to save all 3 entities created (pessoa, email, telefone) in 3 different transactions. If any of them fails, only that particular save is rolled back. If this is the case, you should call Save (or SaveAsync) for each entity (or group of entities you want in a transaction).
 
Please let me know if that's what you are looking for.


Edited by sbelini - 29-Oct-2010 at 12:00pm]]> Fri, 29 Oct 2010 11:53:25 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8983#8983 Transaction in DevForce : Hi SbeliniI went thru your Example... http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8982#8982 Author: bala
Subject: 2268
Posted: 29-Oct-2010 at 11:26am

Hi Sbelini

I went thru  your Example but its not enough to undesrstand me.
I want to save sequentially one by one object if one of object fail due to any reason
I want to roolback it...

for example like power failuare or any techinical  problem..

could you assist me..
thanks
]]> Fri, 29 Oct 2010 11:26:42 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8982#8982 Transaction in DevForce : Hi bala, I'm not sure... http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8981#8981 Author: sbelini
Subject: 2268
Posted: 29-Oct-2010 at 11:21am

Hi bala,
 
I'm not sure I understand what you need. Can you clarify?
 
In the meantime, you can find some informations about transactions at
http://drc.ideablade.com/xwiki/bin/view/Documentation/AdvPersist_TransactionalQueries
and
http://drc.ideablade.com/xwiki/bin/view/Documentation/Saving_Transactions
 
Silvio.
]]> Fri, 29 Oct 2010 11:21:00 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8981#8981 Transaction in DevForce : Hi I have to use Transaction. ... http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8940#8940 Author: bala
Subject: 2268
Posted: 27-Oct-2010 at 11:20am

Hi
I have to use Transaction.
      private void button1_Click(object sender, RoutedEventArgs e)
        {
            PESSOA pessoa = new PESSOA();
            _em.AddEntity(pessoa);
         }
 
        private void button2_Click(object sender, RoutedEventArgs e)
        {
            PESSOA_EMAIL email = new PESSOA_EMAIL();
            _em.AddEntity(email);
        }
 
        private void button3_Click(object sender, RoutedEventArgs e)
        {
            PESSOA_TELEFONE telefone = new PESSOA_TELEFONE();
            _em.AddEntity(telefone);
        }
        private void Save_Click(object sender, RoutedEventArgs e)
        {
	////	_em.saveAsynco()..            
        }
	Above manner i have to use Transaction Commit and rollback
Any Help
PS: I am using oracle as  database.
 
Thanks	
 


Edited by bala - 27-Oct-2010 at 11:21am]]> Wed, 27 Oct 2010 11:20:20 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2268&PID=8940#8940