Re: Transactions when are they used

Transactions when are they usedYour architect is right, handling
transactions in the database has much better performance than compared to
using J2EE transactions.
There are many scenarios where J2EE transaction is used.
In our project we have used UserTransaction, since the data which the user
is entering is critical, and the logic for inserting the data is written in
the Session beans, and the data is inserted into database via Entity beans
i.e. CMP. The data as has to be ATOMIC, having transactions in the
Middleware is more suitable.
If your database is fixed.. its not gonna change, then its much better
performance wise to put the logic and transaction handling in the database.

vikram.
  -----Original Message-----
  From: A mailing list for Enterprise JavaBeans development
[mailto:[email protected]]On Behalf Of Ranjit Gopalan
  Sent: Saturday, October 11, 2003 10:20 PM
  To: [email protected]
  Subject: 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


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