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Transaction watchers for Default DBAL Connection

Sometimes it is required to perform some work only after data are committed to the database. For instance, sending notifications to users or external systems.

In this case, you can create a class that implements Oro\Component\DoctrineUtils\DBAL\TransactionWatcherInterface and register it as a service tagged by the oro.doctrine.connection.transaction_watcher tag. Afterward, this class will be able to perform some actions after the root transaction for the default DBAL connection starts, is committed, or rolled back. Please note that methods of this class will be called for the root transaction only; starting, committing, and rolling back of any nested transaction are not tracked.