Explain the transactional attribute Mandatory.

Use the Mandatory attribute if the enterprise bean?s method must use the transaction of the client.

If the client is running within a transaction and invokes the enterprise bean?s method, the method executes within the client?s transaction. If the client is not associated with a transaction, the container throws the TransactionRequiredException.

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Spring / Java Transactions (JTA)

Explain the transactional attribute Mandatory.

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