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From "Nguyen, Tom" <Tom.Ngu...@rels.info>
Subject RE: iBatis.Net - Optimistic concurrency control
Date Wed, 18 Apr 2007 18:04:20 GMT
Unless I'm behind on my knowledge, I don't believe that iBatis.Net has
automatic optimistic concurrency implementation.  You will have to
implement this yourself.


This is the pseudo of how I implemented mine:

BusinessBase<T> : IClonable


-OriginalObject AS T


Employee : BusinessBase<Employee>





1.	Retrieve Employee
2.	Clone Employee and store in OriginalObject
3.	Employee is parameter class of Update Ibatis Mapping


UPDATE dbo.Employee

SET FirstName = #_firstName#

            , LastName = #_lastName#

            , SSN = #_ssn#

WHERE FirstName = #OriginalObject._firstName#

            AND LastName = #OriginalObject._lastName#

            AND SSN = #OriginalObject._ssn#



Unless you have build some kind of framework to do this, it is a lot of
manual, repetitive work.  Only do it when you really need to.



Tom Nguyen 
Sr. Developer
tom.nguyen@rels.info <mailto:tom.nguyen@rels.info> 


From: Philippe Peuret [mailto:philippe.peuret@neoxia.com] 
Sent: Wednesday, April 18, 2007 7:20 AM
To: user-cs@ibatis.apache.org
Subject: TR: iBatis.Net - Optimistic concurrency control




How to use the optimistic concurrency control when we update the
database with iBatis.Net ?

Because, when we use the <insert> or <update> elements, we can only pass
one parameter : the object to insert or to update. But there is no other
parameter to pass the data to the optimistic concurrency control.


Thank you for your help.

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