Mainly, RDF Entity provides an entity type (rdf_entity) that uses the SPARQL backend provided by SPARQL Entity Storage module. The entity type can be used as it is, can be extended or, simply, used as a good use case of the SPARQL Entity Storage module.

Updating from 1.0-alpha16 to alpha17

With 1.0-alpha17, the SPARQL storage has been split out, as a standalone module. Moving services from one module to the other is impossible with the actual Drupal core. See the related Drupal core issue for details. As the module is in alpha, we're not providing any update path but we recommend to follow the next steps in order to update a server in production:

1. The update process is split in two consecutive deployments.
2. Install an empty version of the sparql_entity_storage module:

   $ composer require drupal/sparql_entity_storage:dev-empty-module

3. Enable the module.
4. Deploy to production.
5. Require drupal/rdf_entity with the new 1.0-alpha17 version and perform a second deployment.