luid

package

v1.1.1 Latest Latest Go to latest Published: Mar 28, 2022 License: MIT Imports: 8 Imported by: 0

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Repository

github.com/previnder/citra

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Open Source Insights

Documentation ¶

Overview ¶

Package luid implements IDs that are (practically always) sequential but are not iterative like auto incrementing IDs.

Index ¶

type ID
- func FromString(hex string) (id ID, err error)
- func New() (ID, time.Time)
type NullID

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type ID ¶

type ID [12]byte

ID is an array of 12 bytes that is composed of 8 bytes of time and 4 random bytes in big endian byte order.

func FromString ¶

func FromString(hex string) (id ID, err error)

FromString unmarshals hex and returns an ID.

hex can be any valid hexadecimal number of len(ID) bytes. FromString does not check whether hex corrosponds to a valid ID.

func New ¶

func New() (ID, time.Time)

New returns a new ID and the time.Time (current time in UTC) used for the first 8 bytes of ID.

Remember to call rand.Seed before using New.

func (ID) EqualsTo ¶

func (d ID) EqualsTo(x ID) bool

EqualsTo returns true if d and x are identical byte strings.

func (ID) MarshalText ¶

func (d ID) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler interface. And returns the hexadecimal encoding of ID.

func (*ID) Scan ¶

func (d *ID) Scan(src interface{}) error

Scan implements sql.Scanner interface.

func (ID) String ¶

func (d ID) String() string

String returns the hexadecimal encoding of ID.

func (*ID) UnmarshalText ¶

func (d *ID) UnmarshalText(text []byte) error

UnmarshalText implements encoding.TextUnmarshaler interface. text is supposed to be the hexadecimal encoding of an ID.

func (ID) Value ¶

func (d ID) Value() (driver.Value, error)

Value implements driver.Valuer interface.

func (*ID) Zero ¶

func (d *ID) Zero()

Zero sets all bytes of ID to 0.

type NullID ¶

type NullID struct {
	ID    ID
	Valid bool
}

NullID represents an ID that may be null. It is identical to sql.NullString.

func (NullID) MarshalJSON ¶

func (ni NullID) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshalar interface.

func (*NullID) Scan ¶

func (ni *NullID) Scan(src interface{}) error

Scan implements the sql.Scanner interface.

func (*NullID) UnmarshalJSON ¶

func (ni *NullID) UnmarshalJSON(b []byte) error

UnmarshalJSON implements json.Unmarshalar interface.

func (NullID) Value ¶

func (ni NullID) Value() (driver.Value, error)

Value implements driver.Valuer interface.

Source Files ¶

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