How to make use of spring declarative transactions along with EntityManagerFactory?

Question

I have defined the following configuration in my application

@Bean
@Primary
@ConfigurationProperties(prefix="database1")
public DataSource rameshDS()
{
    return DataSourceBuilder.create().build();
}

@Primary
@Bean(name = "rameshEntityManagerFactory")
public LocalContainerEntityManagerFactoryBean rameshEntityManagerFactory(EntityManagerFactoryBuilder builder) {
 return builder
               .dataSource(rameshDS())
               .packages("com.nandagiri.entities")
               .build();
   }

@Primary
@Bean(name = "rameshTransactionManager")
public PlatformTransactionManager rameshTransactionManager(
        final @Qualifier("rameshEntityManagerFactory") LocalContainerEntityManagerFactoryBean rameshEntityManagerFactory) {
    return new JpaTransactionManager(rameshEntityManagerFactory.getObject());
}

If I try to insert data into one of the tables in the following way, the data is not persisted. But if I uncomment the lines to explicitly begin/commit transactions then it is working fine. But, I wanted to use declarative way of transactions. How to achieve that?

@Autowired
@Qualifier("rameshEntityManagerFactory")
EntityManagerFactory rameshEntity;


@Override
@Transactional(value = "rameshTransactionManager")
public void storeInfo(Ramesh ramesh) 
{
    EntityManager em = rameshEntity.createEntityManager();
    //em.getTransaction().begin();
    em.persist(ramesh);
    //em.getTransaction().commit();

}

If I persist the entities with repository interface it is working absolutely fine without any issues. please find the code below.

@Repository
public interface RameshRepository extends JpaRepository<Ramesh,      String>
{
 }

@Transactional(transactionManager = "rameshTransactionManager",  propagation = Propagation.REQUIRED)
public void saveRameshs()
{
    saveRamesh1();
    saveRamesh2();

}

@Transactional
public void saveRamesh1()
{
    Ramesh ramesh = new Ramesh();
    ramesh.setId("8");
    ramesh.setFname("jagadeesh");
    ramesh.setLname("K");

    repository.save(ramesh);

}

@Transactional
public void saveRamesh2()
{
    Ramesh ramesh = new Ramesh();
    ramesh.setId("9");
    ramesh.setFname("jagadeesh123");
    ramesh.setLname("k123");

    repository.save(ramesh);
    //int x = 5/0;
}