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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

Properties

id: BlankNode | NamedNode<string>
logger: Logger = ...
store: Store<Quad, Quad, Quad, Quad>

Accessors

  • get contentLength(): undefined | number
  • set contentLength(input: undefined | number): void
  • get contentType(): undefined | string
  • set contentType(input: undefined | string): void
  • get identifier(): BlankNode | NamedNode<string>
  • set identifier(id: BlankNode | NamedNode<string>): void

Methods

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

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

          Returns void

    Returns RepresentationMetadata

  • 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(predicate: string | NamedNode<string>, graph?: MetadataGraph): Term[]
  • quads(subject?: null | string | BlankNode | NamedNode<string>, predicate?: null | string | NamedNode<string>, object?: null | string | BlankNode | NamedNode<string> | Literal, graph?: null | MetadataGraph): Quad[]
  • Parameters

    • subject: null | string | BlankNode | NamedNode<string> = null
    • predicate: null | string | NamedNode<string> = null
    • object: null | string | BlankNode | NamedNode<string> | Literal = null
    • graph: null | MetadataGraph = null

    Returns Quad[]

    All matching metadata quads.

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