Spring Boot - Handle to Hibernate SessionFactory
You can accomplish this with:
SessionFactory sessionFactory =
entityManagerFactory.unwrap(SessionFactory.class);
where entityManagerFactory is an JPA EntityManagerFactory
.
package net.andreaskluth.hibernatesample;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class SomeService {
private SessionFactory hibernateFactory;
@Autowired
public SomeService(EntityManagerFactory factory) {
if(factory.unwrap(SessionFactory.class) == null){
throw new NullPointerException("factory is not a hibernate factory");
}
this.hibernateFactory = factory.unwrap(SessionFactory.class);
}
}
The simplest and least verbose way to autowire your Hibernate SessionFactory is:
This is the solution for Spring Boot 1.x with Hibernate 4:
application.properties:
spring.jpa.properties.hibernate.current_session_context_class=
org.springframework.orm.hibernate4.SpringSessionContext
Configuration class:
@Bean
public HibernateJpaSessionFactoryBean sessionFactory() {
return new HibernateJpaSessionFactoryBean();
}
Then you can autowire the SessionFactory
in your services as usual:
@Autowired
private SessionFactory sessionFactory;
As of Spring Boot 1.5 with Hibernate 5, this is now the preferred way:
application.properties:
spring.jpa.properties.hibernate.current_session_context_class=
org.springframework.orm.hibernate5.SpringSessionContext
Configuration class:
@EnableAutoConfiguration
...
...
@Bean
public HibernateJpaSessionFactoryBean sessionFactory(EntityManagerFactory emf) {
HibernateJpaSessionFactoryBean fact = new HibernateJpaSessionFactoryBean();
fact.setEntityManagerFactory(emf);
return fact;
}
Great work Andreas. I created a bean version so the SessionFactory could be autowired.
import javax.persistence.EntityManagerFactory;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
....
@Autowired
private EntityManagerFactory entityManagerFactory;
@Bean
public SessionFactory getSessionFactory() {
if (entityManagerFactory.unwrap(SessionFactory.class) == null) {
throw new NullPointerException("factory is not a hibernate factory");
}
return entityManagerFactory.unwrap(SessionFactory.class);
}