Introduce default exists(…) method on KeyValueAdapter to allow for store-specific optimizations of the exists method. Lazily construct a single PartTree instance for reuse. Refine generics. See #386 Original pull request: #386.
Introduce default exists(…) method on KeyValueAdapter to allow for store-specific optimizations of the exists method. Lazily construct a single PartTree instance for reuse. Refine generics. See #386 Original pull request: #386.