Used declare a page or operation on a page transactional. If a page is annotated with this annotation,
the loading of the page is considered a transaction (using the value as transaction name). If a method
is annotated with this annotation, the execution of the method is considered a transaction.
The name of the transaction. If the value is ommitted, the transaction will be derived from
the classname (for Pages or from the method name and the name of the
class or the transaction of the class.