nosql

package
v0.7.8 Latest Latest
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 Go to latest Published: Nov 27, 2019 License: Apache-2.0 Imports: 15 Imported by: 0

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Constants

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const DefaultDBName = "cayley"

Variables

This section is empty.

Functions

func Init 

func Init(db nosql.Database, opt graph.Options) error

func Register 

func Register(name string, r Registration)

Types

type InitFunc 

type InitFunc func(string, graph.Options) (nosql.Database, error)

type Iterator 

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

func (*Iterator) Iterate added in v0.7.8 

func (it *Iterator) Iterate() iterator.Scanner

func (*Iterator) Lookup added in v0.7.8 

func (it *Iterator) Lookup() iterator.Index

func (*Iterator) Optimize 

func (it *Iterator) Optimize(ctx context.Context) (iterator.Shape, bool)

func (*Iterator) Sorted 

func (it *Iterator) Sorted() bool

func (*Iterator) Stats 

func (it *Iterator) Stats(ctx context.Context) (iterator.Costs, error)

func (*Iterator) String 

func (it *Iterator) String() string

func (*Iterator) SubIterators 

func (it *Iterator) SubIterators() []iterator.Shape

type Linkage 

type Linkage struct {
	Dir quad.Direction
	Val NodeHash
}

type NewFunc 

type NewFunc func(string, graph.Options) (nosql.Database, error)

type NodeHash 

type NodeHash string

func (NodeHash) IsNode 

func (NodeHash) IsNode() bool

func (NodeHash) Key 

func (v NodeHash) Key() interface{}

type QuadHash 

type QuadHash [4]string

func (QuadHash) Get 

func (h QuadHash) Get(d quad.Direction) string

func (QuadHash) IsNode 

func (QuadHash) IsNode() bool

func (QuadHash) Key 

func (v QuadHash) Key() interface{}

type QuadStore 

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

func NewQuadStore added in v0.7.1 

func NewQuadStore(db nosql.Database, nopt *Traits, opt graph.Options) (*QuadStore, error)

func (*QuadStore) ApplyDeltas 

func (qs *QuadStore) ApplyDeltas(deltas []graph.Delta, ignoreOpts graph.IgnoreOpts) error

func (*QuadStore) Close 

func (qs *QuadStore) Close() error

func (*QuadStore) NameOf 

func (qs *QuadStore) NameOf(v graph.Ref) quad.Value

func (*QuadStore) NewQuadWriter added in v0.7.8 

func (qs *QuadStore) NewQuadWriter() (quad.WriteCloser, error)

func (*QuadStore) NodesAllIterator 

func (qs *QuadStore) NodesAllIterator() iterator.Shape

func (*QuadStore) OptimizeShape 

func (qs *QuadStore) OptimizeShape(ctx context.Context, s shape.Shape) (shape.Shape, bool)

func (*QuadStore) Quad 

func (qs *QuadStore) Quad(val graph.Ref) quad.Quad

func (*QuadStore) QuadDirection 

func (qs *QuadStore) QuadDirection(in graph.Ref, d quad.Direction) graph.Ref

func (*QuadStore) QuadIterator 

func (qs *QuadStore) QuadIterator(d quad.Direction, val graph.Ref) iterator.Shape

func (*QuadStore) QuadIteratorSize added in v0.7.8 

func (qs *QuadStore) QuadIteratorSize(ctx context.Context, d quad.Direction, v graph.Ref) (refs.Size, error)

func (*QuadStore) QuadsAllIterator 

func (qs *QuadStore) QuadsAllIterator() iterator.Shape

func (*QuadStore) Size 

func (qs *QuadStore) Size() int64

func (*QuadStore) Stats added in v0.7.8 

func (qs *QuadStore) Stats(ctx context.Context, exact bool) (graph.Stats, error)

func (*QuadStore) ValueOf 

func (qs *QuadStore) ValueOf(s quad.Value) graph.Ref

type Quads 

type Quads struct {
	Links []Linkage // filters to select quads
	Limit int64     // limits a number of documents
}

Quads is a shape representing a quads query

func (Quads) BuildIterator 

func (s Quads) BuildIterator(qs graph.QuadStore) iterator.Shape

func (Quads) Optimize 

func (s Quads) Optimize(ctx context.Context, r shape.Optimizer) (shape.Shape, bool)

type Registration 

type Registration struct {
	NewFunc      NewFunc
	InitFunc     InitFunc
	IsPersistent bool
	Traits
}

type Shape 

type Shape struct {
	Collection string              // name of the collection
	Filters    []nosql.FieldFilter // filters to select documents
	Limit      int64               // limits a number of documents
}

Shape is a shape representing a documents query with filters

func (Shape) BuildIterator 

func (s Shape) BuildIterator(qs graph.QuadStore) iterator.Shape

func (Shape) Optimize 

func (s Shape) Optimize(ctx context.Context, r shape.Optimizer) (shape.Shape, bool)

type Traits added in v0.7.8 

type Traits = nosql.Traits

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