Hi I need to pass my own ClassLoaderServiceImpl into Hibernate. The issue is that I cannot figure out how to pass it into Hibernate over Spring Boot. How would I do it?

Here is what I got:

ClassLoaderServiceImpl serviceImpl = new ClassLoaderServiceImpl(customClassLoader);
// Magical code that injects serviceImpl into Spring Boot, which will give it to Hibernate

Any help is much appreciated!

CodePudding user response：

That could be tricky.

1. you need to use specific EntityManagerFactoryBuilderImpl constructor to inject your own implementation of ClassLoaderServiceImpl
2. spring-orm uses another constructor which does not fit your needs: SpringHibernateJpaPersistenceProvider - thus, you need to override/inherit SpringHibernateJpaPersistenceProvider
3. next you need to override HibernateJpaVendorAdapter#getPersistenceProvider
4. after that you will need to override boot auto-configurations.