Integration with Spring managed transactions.
This project provides an Ebean ExternalTransactionManager specifically
to integrate with Springs JDBC Transaction manager.
You can use Ebean in Spring/Spring Boot without this and that case Ebean manages the Transactions itself. With Ebean managing the transactions there are some benefits with more control over JDBC batch, getGeneratedKeys and a simpler abstraction (as Spring transactions is designed to manage multiple resources such as JDBC Transactions and JPA EntityManager and Ebean only needs to manage JDBC Transactions).