@comunica/actor-query-source-dereference-link-hypermedia

Comunica Dereference Query Source Hypermedia Resolve Actor

A Query Source Dereference Link actor that resolves links as hypermedia-based sources.

This module is part of the Comunica framework, and should only be used by developers that want to build their own query engine.

Click here if you just want to query with Comunica.

Install

$ yarn add @comunica/actor-query-source-dereference-link-hypermedia

Configure

After installing, this package can be added to your engine's configuration as follows:

{
  "@context": [
    ...
    "https://linkedsoftwaredependencies.org/bundles/npm/@comunica/actor-query-source-dereference-link-hypermedia/^1.0.0/components/context.jsonld"
  ],
  "actors": [
    ...
    {
      "@id": "urn:comunica:default:query-source-dereference-link/actors#dereference",
      "@type": "ActorQuerySourceDereferenceLinkHypermedia",
      "mediatorDereferenceRdf": { "@id": "urn:comunica:default:dereference-rdf/mediators#main" },
      "mediatorMetadata": { "@id": "urn:comunica:default:rdf-metadata/mediators#main" },
      "mediatorMetadataExtract": { "@id": "urn:comunica:default:rdf-metadata-extract/mediators#main" },
      "mediatorMetadataAccumulate": { "@id": "urn:comunica:default:rdf-metadata-accumulate/mediators#main" },
      "mediatorQuerySourceIdentifyHypermedia": { "@id": "urn:comunica:default:query-source-identify-hypermedia/mediators#main" },
      "sparqlServiceDescriptionTimeout": 3000
    }
  ]
}

Config Parameters

• mediatorDereferenceRdf: A mediator over the Dereference RDF bus.
• mediatorMetadata: A mediator over the Metadata bus.
• mediatorMetadataExtract: A mediator over the Metadata Extract bus.
• mediatorMetadataAccumulate: A mediator over the Metadata Accumulatebus.
• mediatorQuerySourceIdentifyHypermedia: A mediator over the Query Source Identify Hypermedia bus.
• sparqlServiceDescriptionTimeout: Timeout in ms for dereferencing SPARQL service descriptions. Defaults to 3000.