2.6. Transaction Synchronization

Transaction synchronization allows the application server to be notified before and after the transaction completes. For each transaction started, the application server may optionally register a Synchronization callback object to be invoked by the transaction manager either before or after completion:
  • The beforeCompletion method is called prior to the start of the two-phase transaction complete process. This call is executed in the same transaction context of the caller who initiates the TransactionManager.commit, or with no transaction context if Transaction.commit is used.
  • The afterCompletion method is called after the transaction has completed. The status of the transaction is supplied in the parameter. This method is executed without a transaction context.