← Projects

Java · Library

Transactional Outbox Relay

Reliably connect business changes and outgoing events.

Source available
GitHub

Architecture and data flow

Data flow
  1. Database transaction
  2. outbox
  3. lease/relay
  4. Kafka
  5. acknowledgement

Data and event are committed together. Repeated publication remains possible and must be handled by the receiver.

Code and evidence

Pinned source links show the implementation and existing test files. Startup commands and documented verification boundaries are in the README at the same version. This website audit is not a fresh CI run of every project.

Licence: Apache-2.0 · Source checked on 12.10.2026

Learn through tutorials