What else can be used besides Poller for Outbox?

In addition to pollers for implementing the Outbox pattern, the following approaches can be used:

• Event brokers with transaction support — for example, Kafka with transactional producers that allow atomic recording of data and events.

• Change Data Capture (CDC) — tools that track changes in the database and publish events, such as Debezium.

• Database triggers — for automatic recording of events into a separate table or queue.

• Systems supporting transactional messages — for example, using MQ with transaction support.

• Using timers or event mechanisms within the application that respond to changes without constant polling.

These methods help reduce system load and improve the reliability of message delivery without continuous active polling.