// Copyright 2014 by Sascha L. Teichmann
// Use of this source code is governed by the MIT license
// that can be found in the LICENSE file.

package main

type Backend interface {
	Fetch(hash, key []byte) ([]byte, error)
	InTransaction() bool
	Store(hash, key, value []byte) (bool, error)
	BeginTransaction() error
	CommitTransaction() error
	Shutdown() error
}