triple

Documentation

Overview

Package triple implements and allows to manipulate BadWolf triples.

Index

• type Object
  • func NewLiteralObject(l *literal.Literal) *Object
  • func NewNodeObject(n *node.Node) *Object
  • func NewPredicateObject(p *predicate.Predicate) *Object
  • func ParseObject(s string, b literal.Builder) (*Object, error)
  • func (o *Object) Literal() (*literal.Literal, error)
  • func (o *Object) Node() (*node.Node, error)
  • func (o *Object) Predicate() (*predicate.Predicate, error)
  • func (o *Object) String() string
  • func (o *Object) UUID() uuid.UUID
• type Triple
  • func New(s *node.Node, p *predicate.Predicate, o *Object) (*Triple, error)
  • func Parse(line string, b literal.Builder) (*Triple, error)
  • func (t *Triple) Equal(t2 *Triple) bool
  • func (t *Triple) Object() *Object
  • func (t *Triple) Predicate() *predicate.Predicate
  • func (t *Triple) Reify() ([]*Triple, *node.Node, error)
  • func (t *Triple) String() string
  • func (t *Triple) Subject() *node.Node
  • func (t *Triple) UUID() uuid.UUID

Types

type Object

type Object struct {
	// contains filtered or unexported fields
}

Object is the box that either contains a literal, a predicate or a node.

func NewLiteralObject

func NewLiteralObject(l *literal.Literal) *Object

NewLiteralObject returns a new object that boxes a literal.

func NewNodeObject

func NewNodeObject(n *node.Node) *Object

NewNodeObject returns a new object that boxes a node.

func NewPredicateObject

func NewPredicateObject(p *predicate.Predicate) *Object

NewPredicateObject returns a new object that boxes a predicate.

func ParseObject

func ParseObject(s string, b literal.Builder) (*Object, error)

ParseObject attempts to parse an object.

func (*Object) Literal

func (o *Object) Literal() (*literal.Literal, error)

Literal attempts to return the boxed literal.

func (*Object) Node

func (o *Object) Node() (*node.Node, error)

Node attempts to return the boxed node.

func (*Object) Predicate

func (o *Object) Predicate() (*predicate.Predicate, error)

Predicate attempts to return the boxed predicate.

func (*Object) String

func (o *Object) String() string

String pretty prints the object.

func (*Object) UUID

func (o *Object) UUID() uuid.UUID

UUID returns a global unique identifier for the given object. It is implemented by returning the UIUD of the underlying value stored in the object.

type Triple

type Triple struct {
	// contains filtered or unexported fields
}

Triple describes a <subject predicate object> used by BadWolf.

func New

func New(s *node.Node, p *predicate.Predicate, o *Object) (*Triple, error)

New creates a new triple.

func Parse

func Parse(line string, b literal.Builder) (*Triple, error)

Parse process the provided text and tries to create a triple. It assumes that the provided text contains only one triple.

func (*Triple) Equal

func (t *Triple) Equal(t2 *Triple) bool

Equal checks if two triples are identical.

func (*Triple) Object

func (t *Triple) Object() *Object

Object returns the object of the triple.

func (*Triple) Predicate

func (t *Triple) Predicate() *predicate.Predicate

Predicate returns the predicate of the triple.

func (*Triple) Reify

func (t *Triple) Reify() ([]*Triple, *node.Node, error)

Reify given the current triple it returns the original triple and the newly reified ones. It also returns the newly created blank node.

func (*Triple) String

func (t *Triple) String() string

String marshals the triple into pretty string.

func (*Triple) Subject

func (t *Triple) Subject() *node.Node

Subject returns the subject of the triple.

func (*Triple) UUID

func (t *Triple) UUID() uuid.UUID

UUID returns a global unique identifier for the given triple. It is implemented as the SHA1 UUID of the concatenated UUIDs of the subject, predicate, and object.