Detailed Information

The jEAP Messaging Outbox is a library providing a robust implementation of the Transactional Outbox pattern for jEAP-based applications. It ensures reliable message delivery by persisting outgoing messages in the same database transaction as the associated business data changes, and dispatching them only after a successful commit. This eliminates the need for distributed transactions while guaranteeing consistency, even if the messaging system is temporarily unavailable. The outbox integrates with Kafka and SQL databases via JPA/JDBC, supports both immediate post-commit sending and scheduled background relay processing, and includes mechanisms for retrying or resending failed messages. It offers configurable housekeeping, retention policies, and extensive operational metrics through Micrometer to support monitoring and alerting.