Hibernate OGM provider for Spring configuration

Question

I created a Java application that can use SQL Server or Neo4j as a database without touching the application layer, I just modify the provider and the connection information

Answer 1

I add Java Config for Neo4j with OGM Hibernate

@Configuration
@EnableTransactionManagement
@JpaPackagesToScan(Entity.class)
public class RepositoryConfig {
    /**
     * Neo4J OGM EntityManager config
     */
    @Bean
    public LocalContainerEntityManagerFactoryBean entityManager(JpaPackagesToScanHolder holder) throws Throwable {

        Map properties = new HashMap();
        properties.put("javax.persistence.transactionType", "JTA");
        properties.put("hibernate.ogm.datastore.provider", "neo4j_embedded");
        properties.put("hibernate.ogm.datastore.database", "my-db");
        properties.put("hibernate.ogm.neo4j.database_path", "/mnt/graph.db");
        properties.put("hibernate.dialect", "org.hibernate.ogm.datastore.neo4j.Neo4jDialect");

        LocalContainerEntityManagerFactoryBean entityManager = new LocalContainerEntityManagerFactoryBean();
        entityManager.setPackagesToScan(holder.toStringArray());
        entityManager.setPersistenceUnitName("my-pu");
        entityManager.setJpaPropertyMap(properties);
        entityManager.setPersistenceProviderClass(HibernateOgmPersistence.class);
        return entityManager;
    }


    @Bean
    public PlatformTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) throws Throwable {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(entityManagerFactory);
        return transactionManager;
    }

}

And added to the pom (for Java 7 project)

    
        org.hibernate.ogm
        hibernate-ogm-neo4j
        4.1.0.Final