Transactions when are they used

The architect for one of our project opted for database transactions instead
of EJB transactions. The reasons given for this are

1. Performance
2. Single datasource.

So what is the design requirment to start using middle ware transactions
other than multiple datasources.

A follow up of the question

Are really transactions used in J2EE project?. I found not a lot of projects
have used EJB transactions when i did a g search and had discussion with my
friends. Am i correct to assume this.

Thanks

Ranjit

===========================================================================
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".