ORM provides a way for resolving short names (e.g. "infinispan") to service implementations (e.g. InfinspanDatastoreProvider). Using this would allow us to get rid of our custom solution; In particular we could avoid that AvailableDatastores enum in core which "knows" all datatstores and instead have each backend module contribute its own short name.

To me it's in the nice-to-have category, not a high prio atm. This may change if there are 3rd-party dialects which should be configurable via short naming.