Hi Vaidya,
I am not sure how WLS behaves but if it is possible to avoid the update
(setdate_last_updated method with null parameter) your problem can be
resolved.
If the following behaviour is correct / configurable,
1. Create the record in a single transaction. (no stores should happen in
this transaction)
2. While calling business method on the same entity, make sure that the bean
state is again loaded. (something similar to a write bean should work?)
3. Now the cmp-field date_last_updated is loaded with the default value that
db has inserted while creating the record. So subsequent stores would not
set the value to null.
Is this observation valid?
<vendor>
Pramati Server allows the user to specify the default value for selected
types for the database column. These values are available in the
ejbPostCreate<METHOD> and subsequently.
</vendor>
Regards,
Hemant
www.pramati.com
----- Original Message -----
From: "Vaidya Krishnamurthy" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, May 22, 2002 11:44 AM
Subject: CMP 2.0 and database defaults
Hi ,
I am trying to create a CMP 2.0 ( WLS 6.1 sp2 ) bean which has a
column managed by the database. How can I handle create/ update...
In my bean the create method looks like this...
create ( ValueObject x )
{
setattr1 ( x.getattr1() )
.
.
setattrn( x.getattrn() )
// setdate_last_updated is not called specifically bcos
I don't know the timestamp yet
}
The date_last_updated column is for further use in case of
updates...
But I suspect that the container calls the setdate_last_updated
method with null parameter when the row is created... ( ofcourse after the
database sets it )
In other words, How can I flag the container/persistence manager
to ignore setXXX during create time.
Thanks much for ur thoughts,
Vaidya
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff EJB-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff EJB-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
