static LocalContainerEntityManagerFactoryBean buildEntityManager(DataSource dataSource,
                                                                 JpaProperties jpaProperties,
                                                                 String entitiesPackage,
                                                                 String persistenceUnitName) {
    LocalContainerEntityManagerFactoryBean entityManager = new LocalContainerEntityManagerFactoryBean();
    entityManager.setDataSource(dataSource);
    entityManager.setPackagesToScan(entitiesPackage);
    entityManager.setPersistenceUnitName(persistenceUnitName);
    entityManager.setJpaVendorAdapter(new HibernateJpaVendorAdapter());

    HashMap<String, Object> properties = new HashMap<>();
    properties.put("hibernate.hbm2ddl.auto", jpaProperties.getHibernate().getDdlAuto());
    properties.put("hibernate.dialect", jpaProperties.getHibernate().getDialect());
    properties.put("show-sql", jpaProperties.getShowSql());

    entityManager.setJpaPropertyMap(properties);
    return entityManager;
}
 

@Primary
@Bean
public LocalContainerEntityManagerFactoryBean userEntityManager() {
    System.out.println("loading config");
    final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
    em.setDataSource(userDataSource());
    em.setPackagesToScan("com.baeldung.multipledb.model.user");

    final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    em.setJpaVendorAdapter(vendorAdapter);
    final HashMap<String, Object> properties = new HashMap<String, Object>();
    properties.put("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
    properties.put("hibernate.dialect", env.getProperty("hibernate.dialect"));
    em.setJpaPropertyMap(properties);

    return em;
}
 

@Bean
public EntityManagerFactory orderEntityManager() {
    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
    factory.setJpaVendorAdapter(vendorAdapter);
    factory.setPackagesToScan("com.baeldung.atomikos.spring.jpa.order");
    factory.setDataSource(orderDataSource());
    Properties jpaProperties = new Properties();
    //jpaProperties.put("hibernate.show_sql", "true");
    //jpaProperties.put("hibernate.format_sql", "true");
    jpaProperties.put("hibernate.dialect", "org.hibernate.dialect.DerbyDialect");
    jpaProperties.put("hibernate.current_session_context_class", "jta");
    jpaProperties.put("javax.persistence.transactionType", "jta");
    jpaProperties.put("hibernate.transaction.manager_lookup_class", "com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup");
    jpaProperties.put("hibernate.hbm2ddl.auto", "create-drop");
    factory.setJpaProperties(jpaProperties);
    factory.afterPropertiesSet();
    return factory.getObject();
}
 

/**
 * org.springframework.beans.factory.FactoryBean that creates a JPA
 * {@link javax.persistence.EntityManagerFactory} according to JPA's standard
 * container bootstrap contract. This is the most powerful way to set up a
 * shared JPA EntityManagerFactory in a Spring application context; the
 * EntityManagerFactory can then be passed to JPA-based DAOs via dependency
 * injection. Note that switching to a JNDI lookup or to a
 * {@link org.springframework.orm.jpa.LocalEntityManagerFactoryBean} definition
 * is just a matter of configuration!
 * 
 * @param multiTenantConnectionProvider
 * @param currentTenantIdentifierResolver
 * @return
 */
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean(
        MultiTenantConnectionProvider multiTenantConnectionProvider,
        CurrentTenantIdentifierResolver currentTenantIdentifierResolver) {

    Map<String, Object> hibernateProps = new LinkedHashMap<>();
    hibernateProps.putAll(this.jpaProperties.getProperties());
    hibernateProps.put(Environment.MULTI_TENANT, MultiTenancyStrategy.DATABASE);
    hibernateProps.put(Environment.MULTI_TENANT_CONNECTION_PROVIDER, multiTenantConnectionProvider);
    hibernateProps.put(Environment.MULTI_TENANT_IDENTIFIER_RESOLVER, currentTenantIdentifierResolver);

    // No dataSource is set to resulting entityManagerFactoryBean
    LocalContainerEntityManagerFactoryBean result = new LocalContainerEntityManagerFactoryBean();
    result.setPackagesToScan(new String[] { Employee.class.getPackage().getName() });
    result.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
    result.setJpaPropertyMap(hibernateProps);

    return result;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    vendorAdapter.setShowSql(true);

    LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
    factory.setDataSource(dataSource());
    factory.setJpaVendorAdapter(vendorAdapter);
    factory.setPackagesToScan("pzinsta.pizzeria.model");
    factory.setJpaPropertyMap(
            ImmutableMap.of(
                    "hibernate.dialect", environment.getProperty("hibernate.dialect"),
                    "hibernate.hbm2ddl.auto", environment.getProperty("hibernate.hbm2ddl.auto"),
                    "hibernate.hbm2ddl.import_files_sql_extractor", environment.getProperty("hibernate.hbm2ddl.import_files_sql_extractor"),
                    "hibernate.hbm2ddl.import_files", environment.getProperty("hibernate.hbm2ddl.import_files")
            ));
    return factory;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {

	HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
	vendorAdapter.setDatabase(Database.HSQL);
	vendorAdapter.setGenerateDdl(true);

	LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
	factory.setJpaVendorAdapter(vendorAdapter);
	factory.setPackagesToScan(packagesToScan());
	factory.setPersistenceUnitName("spring-data-rest-webmvc");
	factory.setDataSource(dataSource());
	factory.afterPropertiesSet();

	return factory;
}
 

@Primary
@Bean
public LocalContainerEntityManagerFactoryBean userEntityManager() {
    final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
    em.setDataSource(userDataSource());
    em.setPackagesToScan("com.baeldung.multipledb.model.user");

    final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    em.setJpaVendorAdapter(vendorAdapter);
    final HashMap<String, Object> properties = new HashMap<String, Object>();
    properties.put("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
    properties.put("hibernate.dialect", env.getProperty("hibernate.dialect"));
    em.setJpaPropertyMap(properties);

    return em;
}
 

@Bean
public EntityManagerFactory entityManagerFactory() throws SQLException {

    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    vendorAdapter.setGenerateDdl(true);

    LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
    factory.setJpaVendorAdapter(vendorAdapter);
    factory.setPackagesToScan("com.stnetix.ariaddna.persistence.entities");
    factory.setDataSource(dataSource());
    Properties properties = new Properties();
    properties.put("hibernate.default_schema", "public");
    properties.put("hibernate.hbm2ddl.auto", "create-drop");
    properties.put("hibernate.show_sql", "true");
    properties.put("hibernate.format_sql", "true");
    properties.put("hibernate.use_sql_comments", "true");
    properties.put("hibernate.temp.use_jdbc_metadata_defaults", "false");
    properties.put("hibernate.dialect", dialect);

    factory.setJpaProperties(properties);
    factory.afterPropertiesSet();

    return factory.getObject();
}
 

@Bean
public EntityManagerFactory inventoryEntityManager() {
    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
    factory.setJpaVendorAdapter(vendorAdapter);
    factory.setPackagesToScan("com.baeldung.atomikos.spring.jpa.inventory");
    factory.setDataSource(inventoryDataSource());
    Properties jpaProperties = new Properties();
    //jpaProperties.put("hibernate.show_sql", "true");
    //jpaProperties.put("hibernate.format_sql", "true");
    jpaProperties.put("hibernate.dialect", "org.hibernate.dialect.DerbyDialect");
    jpaProperties.put("hibernate.current_session_context_class", "jta");
    jpaProperties.put("javax.persistence.transactionType", "jta");
    jpaProperties.put("hibernate.transaction.manager_lookup_class", "com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup");
    jpaProperties.put("hibernate.hbm2ddl.auto", "create-drop");
    factory.setJpaProperties(jpaProperties);
    factory.afterPropertiesSet();
    return factory.getObject();
}
 

@Bean
LocalContainerEntityManagerFactoryBean taskEntityManagerFactory() {

    HibernateJpaVendorAdapter jpaVendorAdapter = new HibernateJpaVendorAdapter();
    jpaVendorAdapter.setGenerateDdl(true);

    LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();

    factoryBean.setDataSource(dataSource);
    factoryBean.setJpaVendorAdapter(jpaVendorAdapter);
    //此处应包含当前模块的domain类
    String packageName = TaskDbConfig.class.getPackage().getName();
    factoryBean.setPackagesToScan(StringUtils.substring(packageName, 0, StringUtils.lastIndexOf(packageName, '.')));

    return factoryBean;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
  HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
  vendorAdapter.setGenerateDdl(true);
  LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
  factory.setJpaVendorAdapter(vendorAdapter);
  factory.setPackagesToScan("com.github.sonus21.rqueue.test.entity");
  factory.setDataSource(dataSource());
  return factory;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
  HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
  vendorAdapter.setGenerateDdl(true);
  LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
  factory.setJpaVendorAdapter(vendorAdapter);
  factory.setPackagesToScan("com.github.sonus21.rqueue.test.entity");
  factory.setDataSource(dataSource());
  return factory;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
  HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
  vendorAdapter.setGenerateDdl(true);
  LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
  factory.setJpaVendorAdapter(vendorAdapter);
  factory.setPackagesToScan("com.github.sonus21.rqueue.test.entity");
  factory.setDataSource(dataSource());
  return factory;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean productEntityManager() {
    final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
    em.setDataSource(productDataSource());
    em.setPackagesToScan("com.baeldung.multipledb.model.product");

    final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    em.setJpaVendorAdapter(vendorAdapter);
    final HashMap<String, Object> properties = new HashMap<String, Object>();
    properties.put("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
    properties.put("hibernate.dialect", env.getProperty("hibernate.dialect"));
    em.setJpaPropertyMap(properties);

    return em;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
    LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
    entityManagerFactoryBean.setPersistenceUnitName(persistenceUnitName());
    entityManagerFactoryBean.setPersistenceProvider(new HibernatePersistenceProvider());
    entityManagerFactoryBean.setDataSource(dataSource());
    entityManagerFactoryBean.setPackagesToScan(packagesToScan());

    JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    entityManagerFactoryBean.setJpaVendorAdapter(vendorAdapter);
    entityManagerFactoryBean.setJpaProperties(additionalProperties());
    return entityManagerFactoryBean;
}
 

@Bean
public JpaVendorAdapter jpaVendorAdapter() {
    HibernateJpaVendorAdapter hibernateJpaVendorAdapter = new HibernateJpaVendorAdapter();
    hibernateJpaVendorAdapter.setShowSql(false);
    hibernateJpaVendorAdapter.setGenerateDdl(true);
    hibernateJpaVendorAdapter.setDatabasePlatform(environment.getProperty("jpa.dialect"));

    return hibernateJpaVendorAdapter;
}
 

@Bean
public HibernateJpaVendorAdapter jpaVendorAdapter() {
  HibernateJpaVendorAdapter adapter = new HibernateJpaVendorAdapter();
  adapter.setDatabase(Database.H2);
  adapter.setShowSql(false);
  adapter.setGenerateDdl(true);
  return adapter;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
	LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
	emf.setDataSource(dataSource());
	emf.setPackagesToScan("com.hantsylabs.example.spring.model");
	emf.setPersistenceProvider(new HibernatePersistenceProvider());
	emf.setJpaProperties(jpaProperties());
	emf.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
	return emf;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
    final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
    em.setDataSource(dataSource());
    em.setPackagesToScan(new String[] { "com.baeldung.boot.domain" });
    em.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
    em.setJpaProperties(additionalProperties());
    return em;
}
 

@Bean
public JpaVendorAdapter jpaVendorAdapter() {
	final HibernateJpaVendorAdapter hibernateJpaVendorAdapter = new HibernateJpaVendorAdapter();
	hibernateJpaVendorAdapter.setShowSql(true);
	hibernateJpaVendorAdapter.setGenerateDdl(true);
	hibernateJpaVendorAdapter.setDatabase(Database.H2);
	return hibernateJpaVendorAdapter;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource) {
	LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
	em.setDataSource(dataSource);
	em.setPackagesToScan("com.ps.bk.hotel.customer.model");

	em.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
	em.setJpaProperties(additionalProperties());
	return em;
}
 

@Bean
public EntityManagerFactory entityManagerFactory() {
    LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
    factoryBean.setPackagesToScan("com.ps.ents");
    factoryBean.setDataSource(dataSource());
    factoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
    factoryBean.setJpaProperties(hibernateProperties());
    factoryBean.afterPropertiesSet();
    return factoryBean.getNativeEntityManagerFactory();
}
 

@Bean
public EntityManagerFactory entityManagerFactory() {
    final LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
    factoryBean.setPackagesToScan("com.ps.ents");
    factoryBean.setDataSource(dataSource());
    factoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
    factoryBean.setJpaProperties(hibernateProperties());
    factoryBean.afterPropertiesSet();
    return factoryBean.getNativeEntityManagerFactory();
}
 

@Bean
public EntityManagerFactory entityManagerFactory() {
    final LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
    factoryBean.setPersistenceUnitManager(persistenceUnitManager());
    factoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
    factoryBean.setJpaProperties(dataConfig.hibernateProperties());
    factoryBean.afterPropertiesSet();
    factoryBean.setLoadTimeWeaver(new InstrumentationLoadTimeWeaver());
    return factoryBean.getNativeEntityManagerFactory();
}
 

@Bean
public EntityManagerFactory entityManagerFactory() {
	LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
	factoryBean.setPersistenceUnitManager(persistenceUnitManager());
	factoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
	factoryBean.setJpaProperties(dataConfig.hibernateProperties());
	factoryBean.afterPropertiesSet();
	factoryBean.setLoadTimeWeaver(new InstrumentationLoadTimeWeaver());
	return factoryBean.getNativeEntityManagerFactory();
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
  final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
  vendorAdapter.setDatabase(Database.H2);
  vendorAdapter.setGenerateDdl(true);

  final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
  em.setDataSource(dataSource());
  em.setPackagesToScan("io.opentracing.contrib.specialagent.test.spring.data");
  em.setJpaVendorAdapter(vendorAdapter);
  return em;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
    final LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
    emf.setDataSource(restDataSource());
    emf.setPackagesToScan(new String[] { "com.baeldung.persistence.model" });

    final JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    emf.setJpaVendorAdapter(vendorAdapter);
    emf.setJpaProperties(hibernateProperties());

    return emf;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
    LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
    em.setDataSource(dataSource());
    em.setPackagesToScan(new String[] { "com.baeldung.hibernate.dynamicupdate.model" });

    JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    em.setJpaVendorAdapter(vendorAdapter);
    em.setJpaProperties(additionalProperties());

    return em;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
	LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
	em.setDataSource(dataSource());
	em.setPackagesToScan(new String[] { "com.packt.springhighperformance.ch6.bankingapp.model" });

	JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
	em.setJpaVendorAdapter(vendorAdapter);
	em.setJpaProperties(additionalProperties());

	return em;
}
 

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
	LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
	em.setDataSource(dataSource());
	em.setPackagesToScan(new String[] { "com.packt.springhighperformance.ch6.bankingapp.model" });

	JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
	em.setJpaVendorAdapter(vendorAdapter);
	em.setJpaProperties(additionalProperties());

	return em;
}