package storage

import (
	"errors"
	"sync"
)

var (
	ErrNoSuchKey = errors.New("no such key in store")
)

type Item interface {
	sync.Locker
	Dirty()
	IsDirty() bool
	GetData() interface{}
	SetData(interface{})
	ItemKey() string
}

type Store interface {
	GetItem(key string, data interface{}) (Item, error)
	Get(key string, data interface{}) error
	Put(key string, version, minorVersion int, secretMode bool, data interface{}) (Item, error)
	FlushAll() []error
	Flush(key string) error
	Shutdown()
}