For enterprise beans with bean-managed JTA transactions, you invoke the
setTransactionTimeout method of the
To Set a Transaction Timeout
In the Administration Console, expand the Configurations node, then
expand the server-config node and select Transaction Service.
On the Transaction Service page, set the value of the Transaction
Timeout field to the value of your choice (for example, 5).
With this setting, if the transaction has not completed within 5
seconds, the EJB container rolls it back.
The default value is 0, meaning that the transaction will not time out.