traversal

package
v0.9.0 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jan 27, 2017 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 BetweenMetadataMatcher 

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

func Between 

func Between(from interface{}, to interface{}) *BetweenMetadataMatcher

func (*BetweenMetadataMatcher) Match 

func (b *BetweenMetadataMatcher) Match(v interface{}) bool

func (*BetweenMetadataMatcher) Value 

func (b *BetweenMetadataMatcher) Value() (interface{}, interface{})

type GTEMetadataMatcher 

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

func Gte 

func Gte(s interface{}) *GTEMetadataMatcher

func (*GTEMetadataMatcher) Match 

func (gte *GTEMetadataMatcher) Match(v interface{}) bool

func (*GTEMetadataMatcher) Value 

func (gte *GTEMetadataMatcher) Value() interface{}

type GTMetadataMatcher 

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

func Gt 

func Gt(s interface{}) *GTMetadataMatcher

func (*GTMetadataMatcher) Match 

func (gt *GTMetadataMatcher) Match(v interface{}) bool

func (*GTMetadataMatcher) Value 

func (gt *GTMetadataMatcher) Value() interface{}

type GraphStepContext added in v0.9.0 

type GraphStepContext struct {
	PaginationRange *GraphTraversalRange
}

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(s ...interface{}) *GraphTraversalV

func (*GraphTraversal) Values 

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

type GraphTraversalE 

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

func (*GraphTraversalE) Count 

func (te *GraphTraversalE) Count(s ...interface{}) *GraphTraversalValue

func (*GraphTraversalE) Dedup 

func (te *GraphTraversalE) Dedup(keys ...interface{}) *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) Limit added in v0.9.0 

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

func (*GraphTraversalE) MarshalJSON 

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

func (*GraphTraversalE) OutV 

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

func (*GraphTraversalE) Range added in v0.9.0 

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

func (*GraphTraversalE) Values 

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

type GraphTraversalRange added in v0.9.0 

type GraphTraversalRange [2]int64

func (*GraphTraversalRange) Iterator added in v0.9.0 

func (r *GraphTraversalRange) Iterator() *common.Iterator

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) Count 

func (tv *GraphTraversalV) Count(s ...interface{}) *GraphTraversalValue

func (*GraphTraversalV) Dedup 

func (tv *GraphTraversalV) Dedup(keys ...interface{}) *GraphTraversalV

func (*GraphTraversalV) Error 

func (tv *GraphTraversalV) Error() error

func (*GraphTraversalV) GetNodes added in v0.9.0 

func (tv *GraphTraversalV) GetNodes() (nodes []*graph.Node)

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) Limit added in v0.9.0 

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

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) PropertyKeys added in v0.9.0 

func (tv *GraphTraversalV) PropertyKeys(keys ...interface{}) *GraphTraversalValue

func (*GraphTraversalV) PropertyValues added in v0.9.0 

func (tv *GraphTraversalV) PropertyValues(keys ...interface{}) *GraphTraversalValue

func (*GraphTraversalV) Range added in v0.9.0 

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

func (*GraphTraversalV) ShortestPathTo 

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

func (*GraphTraversalV) Sum added in v0.9.0 

func (tv *GraphTraversalV) Sum(keys ...interface{}) *GraphTraversalValue

func (*GraphTraversalV) Values 

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

type GraphTraversalValue 

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

func NewGraphTraversalValue 

func NewGraphTraversalValue(gt *GraphTraversal, value interface{}, err ...error) *GraphTraversalValue

func (*GraphTraversalValue) Dedup added in v0.9.0 

func (t *GraphTraversalValue) Dedup(keys ...interface{}) *GraphTraversalValue

func (*GraphTraversalValue) Error 

func (t *GraphTraversalValue) Error() error

func (*GraphTraversalValue) MarshalJSON 

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

func (*GraphTraversalValue) Values 

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

type GremlinTraversalContext added in v0.9.0 

type GremlinTraversalContext struct {
	StepContext GraphStepContext
	Params      []interface{}
}

func (*GremlinTraversalContext) Context added in v0.9.0 

func (p *GremlinTraversalContext) Context() *GremlinTraversalContext

func (*GremlinTraversalContext) ReduceRange added in v0.9.0 

func (p *GremlinTraversalContext) ReduceRange(next GremlinTraversalStep) bool

type GremlinTraversalExtension 

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

type GremlinTraversalParser 

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

func NewGremlinTraversalParser 

func NewGremlinTraversalParser(g *graph.Graph) *GremlinTraversalParser

func (*GremlinTraversalParser) AddTraversalExtension 

func (p *GremlinTraversalParser) AddTraversalExtension(e GremlinTraversalExtension)

func (*GremlinTraversalParser) Parse 

func (p *GremlinTraversalParser) Parse(r io.Reader) (*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)
	Reduce(previous GremlinTraversalStep) GremlinTraversalStep
	Context() *GremlinTraversalContext
}

type GremlinTraversalStepBoth 

type GremlinTraversalStepBoth struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepBoth) Exec 

func (s *GremlinTraversalStepBoth) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepBoth) Reduce 

func (s *GremlinTraversalStepBoth) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepContext 

type GremlinTraversalStepContext struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepContext) Exec 

func (s *GremlinTraversalStepContext) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepContext) Reduce 

func (s *GremlinTraversalStepContext) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepCount 

type GremlinTraversalStepCount struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepCount) Exec 

func (s *GremlinTraversalStepCount) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepCount) Reduce 

func (s *GremlinTraversalStepCount) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepDedup 

type GremlinTraversalStepDedup struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepDedup) Exec 

func (s *GremlinTraversalStepDedup) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepDedup) Reduce 

func (s *GremlinTraversalStepDedup) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepE 

type GremlinTraversalStepE struct {
	GremlinTraversalContext
}

type GremlinTraversalStepG 

type GremlinTraversalStepG struct {
	GremlinTraversalContext
}

built in steps

func (*GremlinTraversalStepG) Exec 

func (s *GremlinTraversalStepG) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepG) Reduce 

func (s *GremlinTraversalStepG) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepHas 

type GremlinTraversalStepHas struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepHas) Exec 

func (s *GremlinTraversalStepHas) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepHas) Reduce 

func (s *GremlinTraversalStepHas) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepIn 

type GremlinTraversalStepIn struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepIn) Exec 

func (s *GremlinTraversalStepIn) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepIn) Reduce 

func (s *GremlinTraversalStepIn) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepInE 

type GremlinTraversalStepInE struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepInE) Exec 

func (s *GremlinTraversalStepInE) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepInE) Reduce 

func (s *GremlinTraversalStepInE) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepInV 

type GremlinTraversalStepInV struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepInV) Exec 

func (s *GremlinTraversalStepInV) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepInV) Reduce 

func (s *GremlinTraversalStepInV) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepKeys added in v0.9.0 

type GremlinTraversalStepKeys struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepKeys) Exec added in v0.9.0 

func (s *GremlinTraversalStepKeys) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepKeys) Reduce added in v0.9.0 

func (s *GremlinTraversalStepKeys) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepLimit added in v0.9.0 

type GremlinTraversalStepLimit struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepLimit) Exec added in v0.9.0 

func (s *GremlinTraversalStepLimit) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepLimit) Reduce added in v0.9.0 

func (s *GremlinTraversalStepLimit) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepOut 

type GremlinTraversalStepOut struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepOut) Exec 

func (s *GremlinTraversalStepOut) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepOut) Reduce 

func (s *GremlinTraversalStepOut) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepOutE 

type GremlinTraversalStepOutE struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepOutE) Exec 

func (s *GremlinTraversalStepOutE) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepOutE) Reduce 

func (s *GremlinTraversalStepOutE) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepOutV 

type GremlinTraversalStepOutV struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepOutV) Exec 

func (s *GremlinTraversalStepOutV) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepOutV) Reduce 

func (s *GremlinTraversalStepOutV) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepRange added in v0.9.0 

type GremlinTraversalStepRange struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepRange) Exec added in v0.9.0 

func (s *GremlinTraversalStepRange) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepRange) Reduce added in v0.9.0 

func (s *GremlinTraversalStepRange) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepShortestPathTo 

type GremlinTraversalStepShortestPathTo struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepShortestPathTo) Exec 

func (s *GremlinTraversalStepShortestPathTo) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepShortestPathTo) Reduce 

func (s *GremlinTraversalStepShortestPathTo) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepSort added in v0.9.0 

type GremlinTraversalStepSort struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepSort) Exec added in v0.9.0 

func (s *GremlinTraversalStepSort) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepSort) Reduce added in v0.9.0 

func (s *GremlinTraversalStepSort) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepSum added in v0.9.0 

type GremlinTraversalStepSum struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepSum) Exec added in v0.9.0 

func (s *GremlinTraversalStepSum) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepSum) Reduce added in v0.9.0 

func (s *GremlinTraversalStepSum) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepV 

type GremlinTraversalStepV struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepV) Exec 

func (s *GremlinTraversalStepV) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepV) Reduce 

func (s *GremlinTraversalStepV) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type GremlinTraversalStepValues added in v0.9.0 

type GremlinTraversalStepValues struct {
	GremlinTraversalContext
}

func (*GremlinTraversalStepValues) Exec added in v0.9.0 

func (s *GremlinTraversalStepValues) Exec(last GraphTraversalStep) (GraphTraversalStep, error)

func (*GremlinTraversalStepValues) Reduce added in v0.9.0 

func (s *GremlinTraversalStepValues) Reduce(next GremlinTraversalStep) GremlinTraversalStep

type InsideMetadataMatcher 

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

func Inside 

func Inside(from, to interface{}) *InsideMetadataMatcher

func (*InsideMetadataMatcher) Match 

func (i *InsideMetadataMatcher) Match(v interface{}) bool

func (*InsideMetadataMatcher) Value 

func (i *InsideMetadataMatcher) Value() (interface{}, interface{})

type LTEMetadataMatcher 

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

func Lte 

func Lte(s interface{}) *LTEMetadataMatcher

func (*LTEMetadataMatcher) Match 

func (lte *LTEMetadataMatcher) Match(v interface{}) bool

func (*LTEMetadataMatcher) Value 

func (lte *LTEMetadataMatcher) Value() interface{}

type LTMetadataMatcher 

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

func Lt 

func Lt(s interface{}) *LTMetadataMatcher

func (*LTMetadataMatcher) Match 

func (lt *LTMetadataMatcher) Match(v interface{}) bool

func (*LTMetadataMatcher) Value 

func (lt *LTMetadataMatcher) Value() 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

func (*NEMetadataMatcher) Value 

func (n *NEMetadataMatcher) Value() interface{}

type OutsideMetadataMatcher 

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

func Outside 

func Outside(from, to interface{}) *OutsideMetadataMatcher

func (*OutsideMetadataMatcher) Match 

func (i *OutsideMetadataMatcher) Match(v interface{}) bool

func (*OutsideMetadataMatcher) Value 

func (i *OutsideMetadataMatcher) Value() (interface{}, interface{})

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

func (*RegexMetadataMatcher) Value added in v0.9.0 

func (r *RegexMetadataMatcher) Value() interface{}

type Since added in v0.9.0 

type Since struct {
	Seconds int64
}

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
	LT
	GT
	LTE
	GTE
	INSIDE
	OUTSIDE
	BETWEEN
	COUNT
	RANGE
	LIMIT
	SORT
	SINCE
	VALUES
	KEYS
	SUM
)

type WithinMetadataMatcher 

type WithinMetadataMatcher struct {
	List []interface{}
}

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

  • traversal.go
  • traversal_extension.go
  • traversal_parser.go
  • traversal_scanner.go

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