libdb

package module

v0.0.0-...-5820b00 Latest Latest Go to latest Published: Mar 20, 2020 License: MIT Imports: 9 Imported by: 1

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Repository

github.com/selfquant/libdb

README ¶

libdb

Documentation ¶

Index ¶

Constants
func DBClose() error
func DBCreate(name string) (err error)
func DBDel(name, k string) (err error)
func DBGet(name, k string) (ret interface{}, err error)
func DBInit(dbName, path string, bDefault bool) (err error)
func DBPut(name, k string, v interface{}) error
func DBRange(name string, f func(k string, v interface{}) bool) error
func DBRangeByPrefix(name, prefix string, f func(k string, v interface{}) bool) error
func PeriodDataList(key interface{}, fCanAppend func(pd *PeriodData) bool) []interface{}
func PeriodDataListRevert(key interface{}, fCanAppend func(pd *PeriodData) bool) []interface{}
func PushPeriodData(key, data interface{}, fCanAppend func(t time.Time, arr []*PeriodData) bool) error
type IDB
type PeriodData

Constants ¶

View Source

const (
	C_Suffix_Split = "[PeriodMemDB]"
	C_Period_1Min  = "C_Period_1Min"
	C_Period_5Min  = "C_Period_5Min"
	C_Period_1Hour = "C_Period_1Hour"
	C_Period_1Day  = "C_Period_1Day"
)

Variables ¶

This section is empty.

Functions ¶

func DBClose ¶

func DBClose() error

func DBCreate ¶

func DBCreate(name string) (err error)

func DBDel ¶

func DBDel(name, k string) (err error)

func DBGet ¶

func DBGet(name, k string) (ret interface{}, err error)

func DBInit ¶

func DBInit(dbName, path string, bDefault bool) (err error)

func DBPut ¶

func DBPut(name, k string, v interface{}) error

func DBRange ¶

func DBRange(name string, f func(k string, v interface{}) bool) error

func DBRangeByPrefix ¶

func DBRangeByPrefix(name, prefix string, f func(k string, v interface{}) bool) error

func PeriodDataList ¶

func PeriodDataList(key interface{}, fCanAppend func(pd *PeriodData) bool) []interface{}

func PeriodDataListRevert ¶

func PeriodDataListRevert(key interface{}, fCanAppend func(pd *PeriodData) bool) []interface{}

func PushPeriodData ¶

func PushPeriodData(key, data interface{}, fCanAppend func(t time.Time, arr []*PeriodData) bool) error

Types ¶

type IDB ¶

type IDB interface {
	DBClose() error
	DBDel(name, k string) error
	DBCreate(name string) error

	// for map
	DBPut(name, k string, v interface{}) error
	DBGet(name, k string) (ret interface{}, err error)
	DBRange(name string, f func(k string, v interface{}) bool) error
	DBRangeByPrefix(name, prefix string, f func(k string, v interface{}) bool) error

	// for list
	DBPush(name, v string, index int) error
	DBRemove(name string, index int) error
	DBPop(name string, index int) error
	DBRevert(name string) []string

	// help
	DBHas(name, k string) bool
	DBKeys(name string) []string
}

var (
	MemoryDB IDB
	LevelDB  IDB
	BoltDB   IDB
)

type PeriodData ¶

type PeriodData struct {
	TN    time.Time
	Value interface{}
}

Source Files ¶

View all Source files

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