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| Failing | Correcting | No Change |
|---|---|---|---|
Transacted | MANDATORY | REQUIRED, REQUIRES_NEW | SUPPORTS |
Not Transacted | NEVER | NOT_SUPPORTED | SUPPORTS |
The "Transacted" and "Not Transacted" represent whether or not an existing transaction is in progress when the call is madecategories represent the container guarantee, i.e. if the bean method will or will not be invoked in a transaction. The "Failing", "Correcting", and "No Change" headers categories represent the action take by the container in the case where an existing transaction is or is not in progressto achieve that guarantee.
For example, Never and Mandatory are categorized as "Failing" and will cause the container to throw an exception to the caller if there is (Tx Never) or is not (Tx Mandatory) a transaction in progress when the method is called. The attributes Required, RequiresNew, and NotSupported are categorized as "Correcting" as they will cause the container to adjust the transactional state automatically as needed to match the desired state, rather than blocking the invocation by throwing an exception.
Detailed description of each Attribute
MANDATORY
A MANDATORY method is guaranteed to always be executed in a transaction. However, it's the caller's job to take care of suppling the transaction. If the caller attempts to invoke the method outside of a transaction, then the container will block the call and throw them an exception.
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