Transaction in BMP and CMP

[Alex GeorgeAlex]

Good morning Ladies and Gentlemen,
I am confused by the way BMP and CMP support transactions. Both BMP and CMP support transactions. But why is it that I have to have the code to manage transactions in BMP and not in CMP? Is it true that the container wouldn�t roll back the transaction if a system error thrown? My container let me choose any of the 6 the transaction attributes for BMP and CMP. Any help appreciated.

[Prabhu Venkatachalam]

BMP - As a Bean Programmer you have manage transaction.

CMP - Container will do the transaction, but you have to tell container which business methods you want conatiner to execute using DD.

Advantage of BMP is, you can have more flexbility than CMP.

DisAdvantage of BMP is, when you want to change the transaction behaviour you need modify the code.But in CMP, you just need to change the transaction attribute mentioned in DD.

HTH,