Can't set JPA naming strategy after configuring multiple data sources (Spring 1.4.1 / Hibernate 5.x)

Question

I am using Spring Boot 1.4.1 which uses Hibernate 5.0.11. Initially I configured a data source using application.properties like this:

spring.da         


        

Answer 1

The same as @ewert answer can be gained using properties:

# this works
spring.jpa.properties.hibernate.implicit_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy
spring.jpa.properties.hibernate.physical_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy

# but that doesn't work
spring.jpa.hibernate.naming.physical-strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy
spring.jpa.hibernate.naming.implicit-strategy=org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy

Answer 2

The only way I get this running properly with Spring-Boot 2+ was setting the following manually:

  @Bean(name = "myEmf")
  public LocalContainerEntityManagerFactoryBean sapEntityManagerFactory(
      EntityManagerFactoryBuilder builder, @Qualifier("myDataSource") DataSource dataSource) {
    return builder
        .dataSource(dataSource)
        .packages("my.custom.package")
        .persistenceUnit("myPu")
        .properties(getProperties())
        .build();
  }

  public Map<String, String> getProperties() {
   val props = new HashMap<String, String>();

    if (isTest()) {
      props.put("hibernate.hbm2ddl.auto", "create");
    } else {
      props.put("hibernate.dialect", "org.hibernate.dialect.PostgreSQL95Dialect");
    }
    return props;
  }

Answer 3

I had the same problem and fixed it with the following code (adapted to the code in the question - for a single entity manager):

protected Map<String, Object> jpaProperties() {
    Map<String, Object> props = new HashMap<>();
    props.put("hibernate.physical_naming_strategy", SpringPhysicalNamingStrategy.class.getName());
    props.put("hibernate.implicit_naming_strategy", SpringImplicitNamingStrategy.class.getName());
    return props;
}

@Primary
@Bean(name = "defaultEntityManager")
public LocalContainerEntityManagerFactoryBean defaultEntityManagerFactory(
    EntityManagerFactoryBuilder builder) {
    return builder
        .dataSource(auntDataSource())
        .packages(Aunt.class)
        .persistenceUnit("aunt")
        .properties(jpaProperties())
        .build();
}

Answer 4

If you are using SessionFactory you should use next lines to set naming strategies.

sessionFactory.setImplicitNamingStrategy(SpringImplicitNamingStrategy.INSTANCE);
sessionFactory.setPhysicalNamingStrategy(new SpringPhysicalNamingStrategy());