Add Spring Boot to existing hibernate - embedded derby application - spring

Question

I already have an existing application with hibernate and embedded derby working.
My hibernate.cfg.xml has the following settings
<property name="connection.driver_class">org.apache.derby.jdbc.EmbeddedDriver</property>
<property name="connection.url">jdbc:derby:data;create=true</property>
<property name="connection.username">application</property>
<property name="connection.password">password</property>
<property name="hibernate.default_schema">my_application</property>
everything has been working fine but I wish to add spring boot to that project and I am getting
Failed to create sessionFactory
object.org.hibernate.service.spi.ServiceException: Unable to create
requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
when I am loading the sessionFactory from hibernate. Why can I not do that? Is loading embedded Derby from spring boot the only way? I don't want spring boot to have any relation to the database.
Also, after adding spring boot my log4j.properties file is not read anymore even if I do not run spring boot at all.

Answer 1

Found it. needed to set application.properties like this
spring.jpa.show-sql=true spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.DerbyDialect
spring.datasource.url=jdbc:derby:data;create=true
spring.datasource.username=application
spring.datasource.password=password
spring.datasource.driver-class-name=org.apache.derby.jdbc.EmbeddedDriver
spring.datasource.initialize=true
spring.jpa.properties.hibernate.current_session_context_class=org.springframework.orm.hibernate4.SpringSessionContext
my boot app needs a hibernate bean like this
#SpringBootApplication
#EntityScan("core.peristence.dtos")
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
#Bean
public HibernateJpaSessionFactoryBean sessionFactory() {
return new HibernateJpaSessionFactoryBean();
}
}
and my service can autowire the sessionFactory now like this:
#Service
public class MyService {
#Autowired
private SessionFactory sessionFactory;
...
}