Exploring the transaction boundaries between ESB and BPEl

Hi
I was working on how to explore the transaction boundaries between the ESB and BPEL.
How to work on these I have some confusions over in this.
Please help me.
Cheers.

Jan,
Are you sure about this ?
http://www.oracle.com/technology/products/integration/esb/files/esb-transactions-errorhandling.pdf
I'm not a die-hard at the transaction-mechanisme so some wild guessings.
If i look at this document, i can define on every routing rule the sync/async processing.
If i select on both db-adapter-routings the sync-option, and i make sure both dbadapter-connections make use of the xA properties in the datasource-properties, shouldn't this help him on his way?
I haven't tested it, so im curious what it would do, or do i miss something?

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Exploring the transaction boundaries between ESB and BPEl

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