This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
// Perform some updates on con1 and con2. The container
// automatically enlists con1 and con2 with the container-
// managed transaction.
As we have specified TransactionAttributeType.REQUIRED, container will start a transaction (i guess on a Connection)
Q- a) Container will start transaction on which Connection (database) Object? From where it obtains information about my database ?
In other words does container uses JTA (Distributed transaction manager layer), from where it obtains info regarding my databses,
user password, url etc..
Q- b) What does the statement means "The container automatically enlists con1 and con2 with the container-manager transaction"?