kv

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: May 4, 2024 License: Apache-2.0 Imports: 27 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	OptAssumeDefaultIdx = "assume_default_idx"
	OptBloom            = "bloom"
)

Variables

View Source 
var (
	ErrNoBucket  = errors.New("kv: no bucket")
	ErrEmptyPath = errors.New("kv: path to the database must be specified")
)
View Source 
var (
	DefaultQuadIndexes = []QuadIndex{

		{Dirs: []quad.Direction{quad.Subject, quad.Predicate}},

		{Dirs: []quad.Direction{quad.Object, quad.Predicate, quad.Subject}},
	}
)

Functions

func CompareQuadDirections added in v0.9.0 

func CompareQuadDirections(a, b []quad.Direction) bool

CompareQuadDirections compares two slices of quad directions for equality.

func CompareQuadIndexes added in v0.9.0 

func CompareQuadIndexes(a, b []QuadIndex) bool

CompareQuadIndexes compares two slices of quad indexes for equality.

func Init 

func Init(ctx context.Context, kv kv.KV, opt graph.Options) error

func New 

func New(ctx context.Context, kv kv.KV, opt graph.Options) (graph.QuadStore, error)

func Register 

func Register(name string, r Registration)

Types

type IndexScan added in v0.9.0 

type IndexScan struct {
	Index  QuadIndex
	Values []uint64
}

func (IndexScan) BuildIterator added in v0.9.0 

func (s IndexScan) BuildIterator(ctx context.Context, qs graph.QuadStore) iterator.Shape

func (IndexScan) Optimize added in v0.9.0 

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

type InitFunc 

type InitFunc func(string, graph.Options) (kv.KV, error)

type Int64Set 

type Int64Set []uint64

func (Int64Set) Len 

func (a Int64Set) Len() int

func (Int64Set) Less 

func (a Int64Set) Less(i, j int) bool

func (Int64Set) Swap 

func (a Int64Set) Swap(i, j int)

type Int64Value 

type Int64Value uint64

func (Int64Value) Key 

func (v Int64Value) Key() interface{}

type NewFunc 

type NewFunc func(string, graph.Options) (kv.KV, error)

type QuadIndex 

type QuadIndex struct {
	Dirs   []quad.Direction `json:"dirs" msgpack:"d"`
	Unique bool             `json:"unique" msgpack:"u"`
}

func (QuadIndex) Equal added in v0.9.0 

func (ind QuadIndex) Equal(ot QuadIndex) bool

func (QuadIndex) Key 

func (ind QuadIndex) Key(vals []uint64) kv.Key

func (QuadIndex) KeyFor 

func (ind QuadIndex) KeyFor(p *proto.Primitive) kv.Key

type QuadIterator 

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

func (*QuadIterator) Iterate added in v0.9.0 

func (it *QuadIterator) Iterate(ctx context.Context) iterator.Scanner

func (*QuadIterator) Lookup added in v0.9.0 

func (it *QuadIterator) Lookup(ctx context.Context) iterator.Index

func (*QuadIterator) Optimize 

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

func (*QuadIterator) Sorted 

func (it *QuadIterator) Sorted() bool

func (*QuadIterator) Stats 

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

func (*QuadIterator) String 

func (it *QuadIterator) String() string

func (*QuadIterator) SubIterators 

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

type QuadStore 

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

func (*QuadStore) ApplyDeltas 

func (qs *QuadStore) ApplyDeltas(ctx context.Context, in []graph.Delta, ignoreOpts graph.IgnoreOpts) error

func (*QuadStore) Close 

func (qs *QuadStore) Close() error

func (*QuadStore) NameOf 

func (qs *QuadStore) NameOf(ctx context.Context, v graph.Ref) (quad.Value, error)

func (*QuadStore) NewQuadWriter added in v0.9.0 

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

func (*QuadStore) NodesAllIterator 

func (qs *QuadStore) NodesAllIterator(ctx context.Context) iterator.Shape

func (*QuadStore) OptimizeShape added in v0.9.0 

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

func (*QuadStore) Quad 

func (qs *QuadStore) Quad(ctx context.Context, k graph.Ref) (quad.Quad, error)

func (*QuadStore) QuadDirection 

func (qs *QuadStore) QuadDirection(ctx context.Context, val graph.Ref, d quad.Direction) (graph.Ref, error)

func (*QuadStore) QuadIterator 

func (qs *QuadStore) QuadIterator(ctx context.Context, dir quad.Direction, v graph.Ref) iterator.Shape

func (*QuadStore) QuadIteratorSize added in v0.9.0 

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

func (*QuadStore) QuadsAllIterator 

func (qs *QuadStore) QuadsAllIterator(ctx context.Context) iterator.Shape

func (*QuadStore) RefsOf added in v0.7.5 

func (qs *QuadStore) RefsOf(ctx context.Context, nodes []quad.Value) ([]graph.Ref, error)

func (*QuadStore) Size 

func (qs *QuadStore) Size(ctx context.Context) (int64, error)

func (*QuadStore) Stats added in v0.9.0 

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

func (*QuadStore) ValueOf 

func (qs *QuadStore) ValueOf(ctx context.Context, s quad.Value) (graph.Ref, error)

func (*QuadStore) ValuesOf 

func (qs *QuadStore) ValuesOf(ctx context.Context, vals []graph.Ref) ([]quad.Value, error)

type Registration 

type Registration struct {
	NewFunc      NewFunc
	InitFunc     InitFunc
	IsPersistent bool
}

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