@Transactional弃用播放2.7

Question

由于@Transactional被弃用发挥2.7，如何升级我的代码，使实体管理事务。

Answer 1

据play documentation JPAApi.withTransaction是你所需要的：

public CompletionStage<Long> runningWithTransaction() {
    return CompletableFuture.supplyAsync(() -> {
        // lambda is an instance of Function<EntityManager, Long>
        return jpaApi.withTransaction(entityManager -> {
            Query query = entityManager.createNativeQuery("select max(age) from people");
            return (Long) query.getSingleResult();
        });
    }, executionContext);
}