Sun Java System Message Queue 4.3 Technical Overview

Local Transactions

A session can be configured as transacted, and the JMS API provides methods for initiating, committing, or rolling back local transactions.

As messages are produced or consumed within a local transaction, the message service tracks the various sends and receives, completing these operations only when the JMS client issues a call to commit the transaction. If a particular send or receive operation within the transaction fails, an exception is raised. The client code can handle the exception by ignoring it, retrying the operation, or rolling back the entire transaction. When a transaction is committed, all its operations are completed. When a transaction is rolled back, all successful operations are cancelled.

The scope of a local transaction is always a single session. That is, one or more producer or consumer operations performed in the context of a single session can be grouped into a single local transaction.