Never mind I found it.  Transactions setting were not what I thought they
were. Doh!

-Peace
Dave


> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Dave King
> Sent: Friday, June 08, 2001 4:33 PM
> To: [EMAIL PROTECTED]
> Subject: [JBoss-user] CMP Performance Question
> 
> 
> with jaws/cmp it seems that each set method issues an update 
> statement to
> the DB.  I'm wondering why this is.  I'm guessing that it is 
> easier this way
> as the bean does not need to track what fields need to be updated.  
> 
> But that is a guess.  I'm just curious as this behavior came 
> as surprise to
> me.  I was expecting the bean to issue one update as a transaction
> completes.
> 
> Here is what I am seeing.
> 
> in a session bean a do something like
> 
> customerBean.setName("Bob Tomato");
> customerBean.setUrl("www.bigidea.com");
> 
> I see 2 sql statements with the SQL Server Profiler.
> update CustomerBean set name ='Bob Tomato"' where customerKey = 1
> update CustomerBean set url ='www.bigidea.com' where customerKey = 1
> 
> I was expecting just one update statement for both.
> 
> I have the session bean methods  and CustomerBean methods set 
> to Required
> for Transaction in ejb-jar.xml.
> 
> I'm using 
> MS SQL Server 7
> INET UNA driver (I know the Opta Driver is recommended but we 
> have the UNA
> driver)
> 
> So I'm curious about this behavior, and why it is that way.  
> Would a BMP
> system have to have the same behavior?  Is this some obvious 
> setting that
> I've missed?  Would this be worth changing? or is the 
> overhead in tracking
> that some field needs to be updated higher than the cost of a 
> update?  If
> it's worth changing/investigating where do I sign up?
> 
> -Peace
> Dave
> 
> 
> 
> 
> 
> 
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