It is very "raw" at the moment, we need to make it better and support the various directory providers that were supported in Search 5.

See org.hibernate.search.backend.lucene.index.impl.DirectoryProvider, org.hibernate.search.backend.lucene.impl.LuceneBackendFactory#getDirectoryProvider.

Also we should document the “directory_provider” configuration property; see {‌{org.hibernate.search.backend.lucene.cfg.LuceneBackendSettings#DIRECTORY_PROVIDER}‌} and {‌{org.hibernate.search.backend.lucene.cfg.LuceneBackendSettings#ROOT_DIRECTORY}‌}