BOLTDB backend.

ErrBackendNotSupported is thrown when the backend k/v store is not supported by libkv.

ErrKeyExists is thrown when the previous value exists in the case of an AtomicPut.

ErrKeyModified is thrown during an atomic operation if the index does not match the one in the store.

ErrKeyNotFound is thrown when the key is not found in the store during a Get operation.

ErrPreviousNotSpecified is thrown when the previous value is not specified for an atomic operation.

Config contains the options for a storage client.

KVPair represents {Key, Value, Lastindex} tuple.

Store represents the backend K/V storage Each store should support every call listed here.

Backend represents a KV Store Backend.