| Xapian | The Xapian namespace contains public interfaces for the Xapian library |
| Xapian::Auto | Database factory functions which determine the database type automatically |
| Xapian::Brass | Database factory functions for the brass backend |
| Xapian::Chert | Database factory functions for the chert backend |
| Xapian::Flint | Database factory functions for the flint backend |
| Xapian::InMemory | Database factory functions for the inmemory backend |
| Xapian::Remote | Database factory functions for the remote backend |
| Xapian::Unicode | Functions associated with handling Unicode characters |