Doc: MutablePersistenceUnitInfo.addManagedPackage() not triggering a package scan [SPR-12821]

[spring-projects-issues]

Filipe Leandro opened SPR-12821 and commented

When using the PersistenceUnitPostProcessor interface for dynamically injecting Entities and Named Queries in my EntityManagerFactory, I use the method MutablePersistenceUnitInfo.addManagedPackage() to add a package for the EntityManagerFactory scan for entities.

However these packages never get scanned.
If I use the method MutablePersistenceUnitInfo.addManagedClassName() and manually add all the classes in thoses packages it works with no problem.

I'm I doing something wrong?
I have tried using these persistenceProviders with the same end result:

• org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider
• org.hibernate.jpa.HibernatePersistenceProvider

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Affects: 4.1.5

Referenced from: commits 98d00ea, 4f1d9fd

[spring-projects-issues]

Juergen Hoeller commented

I'm afraid this is not the purpose of addManagedPackage: That method just adds the actual package declaration for annotation inspection, i.e. a package.java with annotations on it. The framework internally calls that method during subpackage scanning.

Package scanning itself is rather driven by setPackagesToScan on LocalContainerEntityManagerFactoryBean / DefaultPersistenceUnitManager and cannot get modified at the PersistenceUnitInfo level anymore (since it already happened before).

Juergen

[spring-projects-issues]

Filipe Leandro commented

Thank you for your response.
Could the documentation be improved? There is no information in this subject and maybe other people might get confused as I did.

[spring-projects-issues]

Juergen Hoeller commented

Good point, this should be made clear in the javadocs at least. Reopening this issue for that purpose.