If I understood your question correctly, the answer is no. There is no
way to do this.
But to make sure I didn't miss read your question:
- AbstractRepo requires MTUnitOfWork
- MTUnitOfWork requires MTPersistServiceImpl
- MTPersistServiceImpl requires @Named(PersistConsts.JPA_UNIT_NAME)
What you want is:
- guice should inject a different MTUnitOfWork with a different
MTPersistServiceImpl depending on the concrete class of AbstractRepo.
guice does not offer this kind of decision making.
What you could do:
Use AssistedInjection to pass the JpaUnitName from the AbstractRepo
instance to the MTUnitOfWork and from there to the MTPersistService.
On 09/19/2013 04:32 PM, Alex Khomchenko wrote:
Hello everyone.
Sorry for my bad English.
I have a problem with injection condition. There is custom made
MultitenancyPersistence and I want to use different persistence units
for different repository.
Here is my code:
I've got:
public class MultiTenantPersistServiceImpl implements PersistService {
...
@Inject
public
MultiTenantPersistServiceImpl(@Named(PersistConsts.JPA_UNIT_NAME)
String jpaUnitName) { ... }
...
}
and:
public class MultiTenantUnitOfWorkImpl implements UnitOfWork,
EntityManagerProvider {
...
@Inject
public MultiTenantUnitOfWorkImpl(MultiTenantPersistServiceImpl
persistService) {}
...
}
which is used throw Provider at repo:
public abstract class AbstractRepo {
...
@Inject
private EntityManagerProvider entityManagerProvider;
protected EntityManager getEntityManager() {
return entityManagerProvider.get();
}
...
}
and extended by:
public abstract class AbstractFirstDbRepo extends AbstractRepo { ... }
public abstract class AbstractSecondDbRepo extends AbstractRepo { ... }
and binded at module:
public class MultiTenantPersistModule extends PersistModule {
...
@Override
protected void configurePersistence() {
bind(PersistService.class).to(MultiTenantPersistServiceImpl.class);
ThrowingProviderBinder.create(binder()).
bind(EntityManagerFactoryProvider.class, EntityManagerFactory.class).
to(MultiTenantPersistServiceImpl.class);
bind(UnitOfWork.class).to(MultiTenantUnitOfWorkImpl.class);
ThrowingProviderBinder.create(binder()).
bind(EntityManagerProvider.class, EntityManager.class).
to(MultiTenantUnitOfWorkImpl.class);
...
}
So, at last, my question.
What is the simpliest way to specify jpaUnitName at
MultiTenantPersistServiceImpl depending on Repo (AbstractFirstDbRepo
or AbstractSecondDbRepo )?
Thanks a lot.
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