Class Bindings

A set of mappings from a variable to a RDF Term.

abstract
author: Thomas Minier

Hierarchy

Bindings
- BindingBase

Index

Constructors

constructor

Properties

_properties

Accessors

isEmpty
size

Methods

Constructors

constructor

new Bindings(): Bindings

- Defined in src/rdf/bindings.ts:37
Returns Bindings

Properties

Private _properties

_properties: Map<string, any>

Accessors

isEmpty

get isEmpty(): boolean

- Defined in src/rdf/bindings.ts:53
Returns True if the set is empty, False otherwise

Returns boolean

True if the set is empty, False otherwise

size

get size(): number

- Defined in src/rdf/bindings.ts:47
The number of mappings in the set

Returns number

The number of mappings in the set

Methods

bound

bound(triple: TripleObject): TripleObject

- Defined in src/rdf/bindings.ts:199
Bound a triple pattern using the set of mappings, i.e., substitute variables in the triple pattern

Parameters
- triple: TripleObject
  
  Triple pattern
Returns TripleObject

An new, bounded triple pattern

Abstract clear

clear(): void

- Defined in src/rdf/bindings.ts:126
Remove all mappings from the set

Returns void

clone

clone(): Bindings

- Defined in src/rdf/bindings.ts:163
Creates a deep copy of the set of mappings

Returns Bindings

A deep copy of the set

difference

difference(other: Bindings): Bindings

- Defined in src/rdf/bindings.ts:259
Performs a set difference with another set of mappings, i.e., A.difference(B) returns all mappings that are in A and not in B.

Parameters
- other: Bindings
  
  Set of mappings
Returns Bindings

The results of the set difference

Abstract empty

empty(): Bindings

- Defined in src/rdf/bindings.ts:132
Returns an empty set of mappings

Returns Bindings

An empty set of mappings

equals

equals(other: Bindings): boolean

- Defined in src/rdf/bindings.ts:182
Test the equality between two sets of mappings

Parameters
- other: Bindings
  
  A set of mappings
Returns boolean

True if the two sets are equal, False otherwise

every

every(predicate: function): boolean

- Defined in src/rdf/bindings.ts:356
Test if every mappings in the set pass a predicate function

Parameters
- predicate: function
  
  Function to test for each mapping
  - - (variable: string, value: string): boolean
    - Parameters
      - variable: string
      - value: string
      Returns boolean
Returns boolean

True if every mappings in the set some the predicate function, False otheriwse

extendMany

extendMany(values: Array<[string, string]>): Bindings

- Defined in src/rdf/bindings.ts:218
Creates a new bindings with additionnal mappings

Parameters
- values: Array<[string, string]>
  
  Pairs [variable, value] to add to the set
Returns Bindings

A new Bindings with the additionnal mappings

filter

filter(predicate: function): Bindings

- Defined in src/rdf/bindings.ts:315
Filter mappings from the set of mappings using a predicate function

Parameters
- predicate: function
  
  Predicate function
  - - (variable: string, value: string): boolean
    - Parameters
      - variable: string
      - value: string
      Returns boolean
Returns Bindings

A new set of mappings

Abstract forEach

forEach(callback: function): void

- Defined in src/rdf/bindings.ts:120
Invoke a callback on each mapping

Parameters
- callback: function
  
  Callback to invoke
  - - (variable: string, value: string): void
    - Parameters
      - variable: string
      - value: string
      Returns void
Returns void

Abstract get

get(variable: string): string | null

- Defined in src/rdf/bindings.ts:72
Get the RDF Term associated with a SPARQL variable

Parameters
- variable: string
  
  SPARQL variable
Returns string | null

The RDF Term associated with the given SPARQL variable

getProperty

getProperty(key: string): any

- Defined in src/rdf/bindings.ts:93
Get metadata attached to the set using a key

Parameters
- key: string
  
  Metadata key
Returns any

The metadata associated with the given key

Abstract has

has(variable: string): boolean

- Defined in src/rdf/bindings.ts:79
Test if mappings exists for a SPARQL variable

Parameters
- variable: string
  
  SPARQL variable
Returns boolean

True if a mappings exists for this variable, False otherwise

hasProperty

hasProperty(key: string): boolean

- Defined in src/rdf/bindings.ts:102
Check if a metadata with a given key is attached to the set

Parameters
- key: string
  
  Metadata key
Returns boolean

Tur if the metadata exists, False otherwise

intersection

intersection(other: Bindings): Bindings

- Defined in src/rdf/bindings.ts:244
Perform the intersection of the set of mappings with another set

Parameters
- other: Bindings
  
  Set of mappings
Returns Bindings

The intersection set of mappings

isSubset

isSubset(other: Bindings): boolean

- Defined in src/rdf/bindings.ts:270
Test if the set of bindings is a subset of another set of mappings.

Parameters
- other: Bindings
  
  Superset of mappings
Returns boolean

Ture if the set of bindings is a subset of another set of mappings, False otherwise

map

map(mapper: function): Bindings

- Defined in src/rdf/bindings.ts:281
Creates a new set of mappings using a function to transform the current set

Parameters
- mapper: function
  
  Transformation function (variable, value) => [string, string]
  - - (variable: string, value: string): [string | null, string | null]
    - Parameters
      - variable: string
      - value: string
      Returns [string | null, string | null]
Returns Bindings

A new set of mappings

mapValues

mapValues(mapper: function): Bindings

- Defined in src/rdf/bindings.ts:306
Same as map, but only transform values

Parameters
- mapper: function
  
  Transformation function
  - - (variable: string, value: string): string | null
    - Parameters
      - variable: string
      - value: string
      Returns string | null
Returns Bindings

A new set of mappings

mapVariables

mapVariables(mapper: function): Bindings

- Defined in src/rdf/bindings.ts:297
Same as map, but only transform variables

Parameters
- mapper: function
  
  Transformation function
  - - (variable: string, value: string): string | null
    - Parameters
      - variable: string
      - value: string
      Returns string | null
Returns Bindings

A new set of mappings

reduce

reduce<T>(reducer: function, start: T): T

- Defined in src/rdf/bindings.ts:330
Reduce the set of mappings to a value which is the accumulated result of running each element in collection thru a reducing function, where each successive invocation is supplied the return value of the previous.

Type parameters
- T
Parameters
- reducer: function
  
  Reducing function
  - - (acc: T, variable: string, value: string): T
    - Parameters
      - acc: T
      - variable: string
      - value: string
      Returns T
- start: T
  
  Value used to start the accumulation
Returns T

The accumulated value

Abstract set

set(variable: string, value: string): void

- Defined in src/rdf/bindings.ts:86
Add a mapping SPARQL variable -> RDF Term to the set

Parameters
- variable: string
  
  SPARQL variable
- value: string
  
  RDF Term
Returns void

setProperty

setProperty(key: string, value: any): void

- Defined in src/rdf/bindings.ts:111
Attach metadata to the set

Parameters
- key: string
  
  Key associated to the value
- value: any
  
  Value to attach
Returns void

some

some(predicate: function): boolean

- Defined in src/rdf/bindings.ts:343
Test if some mappings in the set pass a predicate function

Parameters
- predicate: function
  
  Function to test for each mapping
  - - (variable: string, value: string): boolean
    - Parameters
      - variable: string
      - value: string
      Returns boolean
Returns boolean

True if some mappings in the set some the predicate function, False otheriwse

toObject

toObject(): Object

- Defined in src/rdf/bindings.ts:138
Serialize the set of mappings as a plain JS Object

Returns Object

The set of mappings as a plain JS Object

toString

toString(): string

- Defined in src/rdf/bindings.ts:149
Serialize the set of mappings as a string

Returns string

The set of mappings as a string

union

union(other: Bindings): Bindings

- Defined in src/rdf/bindings.ts:231
Perform the union of the set of mappings with another set

Parameters
- other: Bindings
  
  Set of mappings
Returns Bindings

The Union set of mappings

Abstract values

values(): IterableIterator<string>

- Defined in src/rdf/bindings.ts:65
Get an iterator over the RDF terms in the set

Returns IterableIterator<string>

An iterator over the RDF terms in the set

Abstract variables

variables(): IterableIterator<string>

- Defined in src/rdf/bindings.ts:59
Get an iterator over the SPARQL variables in the set

Returns IterableIterator<string>

An iterator over the SPARQL variables in the set

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