What this sample helps you learn
This module is step 2 of the [Kafka-to-TxEventQ migration sample](../README.md). It keeps Oracle AI Database Transactional Event Queues as the transport and adds OSON serialization for `WeatherEvent` messages using the Oracle JSON libraries.
What this sample demonstrates
JSON
Document-shaped data and SQL/JSON querying inside Oracle AI Database.
Use when records need flexible structure without leaving SQL, indexes, constraints, and transactions.
TxEventQ
Transactional queues for database-backed events and messaging.
Use when event delivery and data changes need the same transaction boundary.
Kafka
Kafka-compatible eventing and migration paths backed by Oracle AI Database queues.
Use when comparing separate-broker designs or moving Kafka-shaped workloads toward database-native eventing.
Highlights
- Java 21+
- Maven 3.9+
- Oracle AI Database Free running on localhost:1521
- The testuser schema and TxEventQ grants created with ../testuser.sql