All classes that implement DatabaseSourceInterface in Backup and Migrate 5.0.x
- class \Drupal\backup_migrate\Core\Source\DatabaseSource implements FileProcessorInterface, DatabaseSourceInterface uses FileProcessorTrait
- class \Drupal\backup_migrate\Core\Source\MySQLiSource implements PluginCallerInterface uses PluginCallerTrait
- class \Drupal\backup_migrate\Drupal\Source\DrupalMySQLiSource