It would be nice to be able to pass the path (instance identifier) to a YANG list in the MD-SAL and have that return an MD-SAL-backed Java map that would listen to updates and translate put/deletes into appropriate transactions into the MD-SAL.

This would have to have a few quirks to handle possibly failing transactions (do mutating calls block, return a Future, or something else?) as well as possibly provide notifications on changes.

In either event, this would drastically decrease the programmer knowledge required to write an MD-SAL app.