Simultaneous use of Hibernate and Spring data jpa?

Question

Is it possible to use Spring Data JPA (backed by Hibernate as JPA provider) and directly use Hibernate at the same time?

The problem is that when i use JpaTransactionMan

Answer 1

This is what I did, and it worked well: one data source, two transaction manager.
Data source bean:

For Hibernate XML based configuration:

And for spring-data-jpa java based configuration:

@Configuration
@EnableJpaRepositories(basePackages = {"org.sharder.core.repository"}, 
transactionManagerRef = "jpaTransactionManager")
@EnableTransactionManagement
public class JpaConfig {
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(ComboPooledDataSource comboPooledDataSource) {
    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
    vendorAdapter.setDatabasePlatform("org.hibernate.dialect.MySQLDialect");
    factory.setJpaVendorAdapter(vendorAdapter);
    factory.setPackagesToScan("org.sharder.core.entity");
    factory.setDataSource(comboPooledDataSource);
    factory.setJpaProperties(getHibernateProperties());
    return factory;
}

@Bean(name = "jpaTransactionManager")
public PlatformTransactionManager jpaTransactionManager(EntityManagerFactory entityManagerFactory) {
    JpaTransactionManager txManager = new JpaTransactionManager();
    txManager.setEntityManagerFactory(entityManagerFactory);
    return txManager;
}

private Properties getHibernateProperties() {
    Properties properties = new Properties();
    properties.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
    properties.setProperty("hibernate.cache.region.factory_class", "org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory");
    properties.setProperty("hibernate.cache.use_query_cache", "true");
    properties.setProperty("hibernate.cache.use_second_level_cache", "true");
    properties.setProperty("hibernate.cache.use_structured_entries", "true");
    properties.setProperty("hibernate.format_sql", "true");
    properties.setProperty("hibernate.show_sql", "true");
    properties.setProperty("hibernate.use_sql_comments", "true");
    properties.setProperty("hibernate.query.substitutions", "true 1, false 0");
    properties.setProperty("hibernate.jdbc.fetch_size", "20");
    properties.setProperty("hibernate.connection.autocommit", "false");
    properties.setProperty("hibernate.connection.release_mode", "auto");
    return properties;
}

}

Notice that, transactionManagerRef = "jpaTransactionManager" set the JpaTransactionManager to be used with the repositories. Spring Data JPA namespace attributes