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Tx attribute question

faiza athar
Ranch Hand

Joined: Oct 30, 2001
Posts: 136
1)Which of the following EJB Transaction Attributes ensures that all transactions are always demarcated by the container (automatic demarcation)?
TX_SUPPORTS
TX_MANDATORY
TX_REQUIRED
TX_REQUIRES_NEW
my ans: TX_REQUIRED
???
2)Which of the following EJB Transaction Attributes ensures that the method call always takes place in a transaction, either client started, or container started?
TX_SUPPORTS
TX_MANDATORY
TX_REQUIRED
TX_REQUIRES_NEW
my ans: TX_REQUIRED
can anyone confirm ?
Chris Mathews
Ranch Hand

Joined: Jul 18, 2001
Posts: 2712
The answer to the first question is TX_REQUIRES_NEW.
TX_REQUIRED just marks the ejb or method as being required to run in the context of a transaction. The transaction that it runs within may or may not have been created by the container.
TX_REQUIRES_NEW says that the ejb or method must run in a new transaction that is demarcated by the container.
Your answer for number two is correct.
 
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subject: Tx attribute question