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Stores the metadata triples and provides methods for easy access. Most functions return the metadata object to allow for chaining.

Hierarchy

  • RepresentationMetadata

Index

Constructors

constructor

Properties

Private id

id: BlankNode | NamedNode<string>

Protected Readonly logger

logger: Logger = ...

Private store

store: Store<Quad, Quad, Quad, Quad>

Accessors

contentType

  • get contentType(): undefined | string
  • set contentType(input: undefined | string): void

identifier

  • get identifier(): BlankNode | NamedNode<string>
  • set identifier(id: BlankNode | NamedNode<string>): void

Methods

add

addQuad

  • addQuad(subject: string | BlankNode | NamedNode<string>, predicate: string | NamedNode<string>, object: string | BlankNode | Literal | NamedNode<string>, graph?: MetadataGraph): RepresentationMetadata

addQuads

Private forQuads

  • Helper function to simplify add/remove Runs the given function on all predicate/object pairs, but only converts the predicate to a named node once.

    Parameters

    • predicate: string | NamedNode<string>
    • object: MetadataValue
    • forFn: (pred: NamedNode<string>, obj: Literal | NamedNode<string>) => void
        • (pred: NamedNode<string>, obj: Literal | NamedNode<string>): void
        • Parameters

          • pred: NamedNode<string>
          • obj: Literal | NamedNode<string>

          Returns void

    Returns RepresentationMetadata

get

  • get(predicate: string | NamedNode<string>, graph?: MetadataGraph): undefined | Term
  • throws

    Error If there are multiple matching values.

    Parameters

    • predicate: string | NamedNode<string>

      Predicate to get the value for.

    • Optional graph: MetadataGraph

      Optional graph where the triple should be found.

    Returns undefined | Term

    The corresponding value. Undefined if there is no match

getAll

  • getAll(predicate: string | NamedNode<string>, graph?: MetadataGraph): Term[]
  • Finds all object values matching the given predicate and/or graph.

    Parameters

    • predicate: string | NamedNode<string>

      Optional predicate to get the values for.

    • Optional graph: MetadataGraph

      Optional graph where to get from.

    Returns Term[]

    An array with all matches.

quads

  • quads(subject?: null | Term, predicate?: null | Term, object?: null | Term, graph?: null | Term): Quad[]

remove

removeAll

removeQuad

  • removeQuad(subject: string | BlankNode | NamedNode<string>, predicate: string | NamedNode<string>, object: string | BlankNode | Literal | NamedNode<string>, graph?: MetadataGraph): RepresentationMetadata

removeQuads

set

setMetadata

Private setOverrides