Upon invoking getRollbackOnly() method by a business method in an entity bean, which transaction attribute settings will lead the ejb container to throw an exception?
A) Required
B) RequiresNew
C) Never
D) Mandatory

Question

Quizplus · Accepted Answer

DThe `getRollbackOnly` method can only be called in the context of a transaction. Thus, it will throw an exception if it is called in a context where no transaction exists. The transaction attributes "Never" (C) and "Mandatory" (D) are relevant here. "Never" specifies that the method must not be called in a transaction context, and "Mandatory" requires an existing transaction. If there's no transaction and `getRollbackOnly` is invoked with "Never", or if it's expected to be in a transaction due to "Mandatory" but isn't, an exception will be thrown.

Upon Invoking GetRollbackOnly() Method by a Business Method in an Entity