File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes EJB and other Java EE Technologies and the fly likes Transaction Management: BMP & CMP Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » EJB and other Java EE Technologies
Bookmark "Transaction Management: BMP & CMP" Watch "Transaction Management: BMP & CMP" New topic

Transaction Management: BMP & CMP

Gajanan Kulkarni

Joined: Dec 29, 2005
Posts: 11

As part of my application implementation I am doing following

1. MDB gets triggered when system finds message in Q
2. MDB calls Stateless Session Bean
3. Stateless Session Beans performs operations on CMP Entiry Beans as well as BMP entity beans in following sequence
UserTransaction tx = getSessionContext().getUserTransaction();
Perform operation with CMP Entity Bean 1
Perform operation with another Stateless Session Bean
Perform operation with CMP Entity Bean 2
Perform operation with CMP Entity Bean 3
Perform operation with BMP Entity Bean 4
try {
if (tx.getStatus() !=
else {

If there a problem in BMP, I want all operations to roll back.

Am I doing anything wrong? Because I am getting problem in my BMP (last step) saying that
"illegal attempt to use multiple resources that have only one-phase capability".

Any suggestions ??
Vinay Raj
Ranch Hand

Joined: Jun 19, 2006
Posts: 81
You need to check the database driver classes configured for your datasource. They should be XA Drivers. For example, for Oracle database one should use oracle.jdbc.xa.client.OracleXADataSource.
I agree. Here's the link:
subject: Transaction Management: BMP & CMP
It's not a secret anymore!