[jboss-dev-forums] [JBoss Transactions Development] - Re: JTA 1.2 Implementation Work

[Paul Robinson]

Paul Robinson [https://community.jboss.org/people/paul.robinson] created the discussion

"Re: JTA 1.2 Implementation Work"

To view the discussion, visit: https://community.jboss.org/message/816816#816816

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Tom,

> Re: When something goes wrong internally to the implementation of the TransactionInterceptor or TransactionalContext, what RuntimeException should I throw? 
> It doesn't seem to be specified, so I'm thinking I can just throw some Narayana specific RuntimeException.
> 
> Can you provide an example, at the moment I am thinking javax.transaction.TransactionalException (from 3.7: Transactional Annotation)
Yes, I think I can use TransactionalException in the transaction interceptors. However, I was more thinking about what to do in the TransactionalContext. Here's an example:

The TransactionalContext needs to lookup the transaction manager. If this fails, a javax.transaction.SystemException is thrown. This has to be handled (it extends Exception) and the Context interface does not declare that any checked exceptions can be thrown from its methods. Therefore I need to wrap the javax.transaction.SystemException in some unchecked transaction. 

TransactionalException is the only RuntimeException in the JTA 1.2 spec, so I'll just use whatever general unchecked exception we use in the JTA 1.1 implementation.
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