quad

Documentation

Overview

Package quad defines quad and triple handling.

Index

• Variables
• type Direction
  • func (d Direction) Prefix() byte
  • func (d Direction) String() string
• type Quad
  • func (q Quad) Get(d Direction) string
  • func (q Quad) IsValid() bool
  • func (q Quad) NQuad() string
  • func (q Quad) String() string
• type Unmarshaler

Variables

var (
	ErrInvalid    = errors.New("invalid N-Quad")
	ErrIncomplete = errors.New("incomplete N-Quad")
)

Types

type Direction

type Direction byte

Direction specifies an edge's type.

const (
	Any Direction = iota
	Subject
	Predicate
	Object
	Label
)

List of the valid directions of a quad.

func (Direction) Prefix

func (d Direction) Prefix() byte

func (Direction) String

func (d Direction) String() string

type Quad

type Quad struct {
	Subject   string `json:"subject"`
	Predicate string `json:"predicate"`
	Object    string `json:"object"`
	Label     string `json:"label,omitempty"`
}

Our quad struct, used throughout.

func (Quad) Get

func (q Quad) Get(d Direction) string

Per-field accessor for quads.

func (Quad) IsValid

func (q Quad) IsValid() bool

func (Quad) NQuad

func (q Quad) NQuad() string

Prints a quad in N-Quad format.

func (Quad) String

func (q Quad) String() string

Pretty-prints a quad.

type Unmarshaler

type Unmarshaler interface {
	Unmarshal() (Quad, error)
}