engine

type Engine interface {
	// Engine returns the engine name and is used for debugging and logging.
	Engine() string

	// Close the engine so that it no longer can be accessed.
	Close() error

	// Begin a transaction to issue multiple commands (this is an internal transaction
	// for Honu-specific version management, not an external interface).
	Begin(readonly bool) (tx Transaction, err error)
}

type Iterator interface {
	Iter(prefix []byte, options *opts.Options) (i iterator.Iterator, err error)
}

type Store interface {
	Has(key []byte, options *opts.Options) (exists bool, err error)
	Get(key []byte, options *opts.Options) (value []byte, err error)
	Put(key, value []byte, options *opts.Options) error
	Delete(key []byte, options *opts.Options) error
}

type Transaction interface {
	Store
	Finish() error
}