traversal

package
v0.4.0 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Aug 4, 2016 License: Apache-2.0 Imports: 13 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ExecutionError error = errors.New("Error while executing the query")
)

Functions

func SliceToMetadata 

func SliceToMetadata(s ...interface{}) (graph.Metadata, error)

Types

type GraphTraversal 

type GraphTraversal struct {
	Graph *graph.Graph
	// contains filtered or unexported fields
}

func NewGraphTraversal 

func NewGraphTraversal(g *graph.Graph) *GraphTraversal

func (*GraphTraversal) Context 

func (t *GraphTraversal) Context(s ...interface{}) *GraphTraversal

func (*GraphTraversal) Error 

func (t *GraphTraversal) Error() error

func (*GraphTraversal) MarshalJSON 

func (t *GraphTraversal) MarshalJSON() ([]byte, error)

func (*GraphTraversal) V 

func (t *GraphTraversal) V(ids ...graph.Identifier) *GraphTraversalV

func (*GraphTraversal) Values 

func (t *GraphTraversal) Values() []interface{}

type GraphTraversalE 

type GraphTraversalE struct {
	GraphTraversal *GraphTraversal
	// contains filtered or unexported fields
}

func (*GraphTraversalE) Dedup 

func (te *GraphTraversalE) Dedup() *GraphTraversalE

func (*GraphTraversalE) Error 

func (te *GraphTraversalE) Error() error

func (*GraphTraversalE) Has 

func (te *GraphTraversalE) Has(s ...interface{}) *GraphTraversalE

func (*GraphTraversalE) InV 

func (te *GraphTraversalE) InV(s ...interface{}) *GraphTraversalV

func (*GraphTraversalE) MarshalJSON 

func (te *GraphTraversalE) MarshalJSON() ([]byte, error)

func (*GraphTraversalE) OutV 

func (te *GraphTraversalE) OutV(s ...interface{}) *GraphTraversalV

func (*GraphTraversalE) Values 

func (te *GraphTraversalE) Values() []interface{}

type GraphTraversalShortestPath 

type GraphTraversalShortestPath struct {
	GraphTraversal *GraphTraversal
	// contains filtered or unexported fields
}

func (*GraphTraversalShortestPath) Error 

func (sp *GraphTraversalShortestPath) Error() error

func (*GraphTraversalShortestPath) MarshalJSON 

func (sp *GraphTraversalShortestPath) MarshalJSON() ([]byte, error)

func (*GraphTraversalShortestPath) Values 

func (sp *GraphTraversalShortestPath) Values() []interface{}

type GraphTraversalStep 

type GraphTraversalStep interface {
	Values() []interface{}
	MarshalJSON() ([]byte, error)
	Error() error
}

type GraphTraversalV 

type GraphTraversalV struct {
	GraphTraversal *GraphTraversal
	// contains filtered or unexported fields
}

func NewGraphTraversalV 

func NewGraphTraversalV(gt *GraphTraversal, nodes []*graph.Node, err ...error) *GraphTraversalV

func (*GraphTraversalV) Both 

func (tv *GraphTraversalV) Both(s ...interface{}) *GraphTraversalV

func (*GraphTraversalV) Dedup 

func (tv *GraphTraversalV) Dedup() *GraphTraversalV

func (*GraphTraversalV) Error 

func (tv *GraphTraversalV) Error() error

func (*GraphTraversalV) Has 

func (tv *GraphTraversalV) Has(s ...interface{}) *GraphTraversalV

func (*GraphTraversalV) In 

func (tv *GraphTraversalV) In(s ...interface{}) *GraphTraversalV

func (*GraphTraversalV) InE 

func (tv *GraphTraversalV) InE(s ...interface{}) *GraphTraversalE

func (*GraphTraversalV) MarshalJSON 

func (tv *GraphTraversalV) MarshalJSON() ([]byte, error)

func (*GraphTraversalV) Out 

func (tv *GraphTraversalV) Out(s ...interface{}) *GraphTraversalV

func (*GraphTraversalV) OutE 

func (tv *GraphTraversalV) OutE(s ...interface{}) *GraphTraversalE

func (*GraphTraversalV) ShortestPathTo 

func (tv *GraphTraversalV) ShortestPathTo(m graph.Metadata, e ...graph.Metadata) *GraphTraversalShortestPath

func (*GraphTraversalV) Values 

func (tv *GraphTraversalV) Values() []interface{}

type GremlinTraversalExtension 

type GremlinTraversalExtension interface {
	ScanIdent(s string) (Token, bool)
	ParseStep(t Token, p GremlinTraversalStepParams) (GremlinTraversalStep, error)
}

type GremlinTraversalParser 

type GremlinTraversalParser struct {
	Graph  *graph.Graph
	Reader io.Reader
	// contains filtered or unexported fields
}

func NewGremlinTraversalParser 

func NewGremlinTraversalParser(r io.Reader, g *graph.Graph) *GremlinTraversalParser

func (*GremlinTraversalParser) AddTraversalExtension 

func (p *GremlinTraversalParser) AddTraversalExtension(e GremlinTraversalExtension)

func (*GremlinTraversalParser) Parse 

func (p *GremlinTraversalParser) Parse() (*GremlinTraversalSequence, error)

type GremlinTraversalScanner 

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

func NewGremlinTraversalScanner 

func NewGremlinTraversalScanner(r io.Reader, e []GremlinTraversalExtension) *GremlinTraversalScanner

func (*GremlinTraversalScanner) Scan 

func (s *GremlinTraversalScanner) Scan() (tok Token, lit string)

type GremlinTraversalSequence 

type GremlinTraversalSequence struct {
	GraphTraversal *GraphTraversal
	// contains filtered or unexported fields
}

func (*GremlinTraversalSequence) Exec 

func (s *GremlinTraversalSequence) Exec() (GraphTraversalStep, error)

type GremlinTraversalStep 

type GremlinTraversalStep interface {
	Exec(last GraphTraversalStep) (GraphTraversalStep, error)
}

type GremlinTraversalStepParams 

type GremlinTraversalStepParams []interface{}

type NEMetadataMatcher 

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

func Ne 

func Ne(s interface{}) *NEMetadataMatcher

func (*NEMetadataMatcher) Match 

func (n *NEMetadataMatcher) Match(v interface{}) bool

type RegexMetadataMatcher 

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

func Regex 

func Regex(expr string) *RegexMetadataMatcher

func (*RegexMetadataMatcher) Match 

func (r *RegexMetadataMatcher) Match(v interface{}) bool

type Token 

type Token int

Token represents a lexical token. 

const (
	// Special tokens
	ILLEGAL Token = iota
	EOF
	WS

	// Literals
	IDENT

	// Misc characters
	COMMA
	DOT
	LEFT_PARENTHESIS
	RIGHT_PARENTHESIS
	STRING
	NUMBER

	// Keywords
	G
	V
	HAS
	OUT
	IN
	OUTV
	INV
	OUTE
	INE
	DEDUP
	WITHIN
	WITHOUT
	METADATA
	SHORTESTPATHTO
	NE
	BOTH
	CONTEXT
	REGEX
)

type WithinMetadataMatcher 

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

func Within 

func Within(s ...interface{}) *WithinMetadataMatcher

func (*WithinMetadataMatcher) Match 

func (w *WithinMetadataMatcher) Match(v interface{}) bool

type WithoutMetadataMatcher 

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

func Without 

func Without(s ...interface{}) *WithoutMetadataMatcher

func (*WithoutMetadataMatcher) Match 

func (w *WithoutMetadataMatcher) Match(v interface{}) bool

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.