Comunica Query Init Actor

An Init actor that can initialize a query engine.

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-init-query
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Configure

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

{
  "@context": [
    ...
    "https://linkedsoftwaredependencies.org/bundles/npm/@comunica/actor-init-query/^5.0.0/components/context.jsonld"
  ],
  "actors": [
    ...
    {
      "@id": "urn:comunica:default:init/actors#query",
      "@type": "ActorInitQuery",
      "mediatorQueryProcess": { "@id": "urn:comunica:default:query-process/mediators#main" },
      "mediatorQueryResultSerialize": { "@id": "urn:comunica:default:query-result-serialize/mediators#serialize" },
      "mediatorQueryResultSerializeMediaTypeCombiner": { "@id": "urn:comunica:default:query-result-serialize/mediators#mediaType" },
      "mediatorQueryResultSerializeMediaTypeFormatCombiner": { "@id": "urn:comunica:default:query-result-serialize/mediators#mediaTypeFormat" },
      "mediatorHttpInvalidate": { "@id": "urn:comunica:default:http-invalidate/mediators#main" },
      "mediatorContextPreprocess": { "@id": "urn:comunica:default:context-preprocess/mediators#main" },
      "mediatorUpdateQuads": { "@id": "urn:comunica:default:rdf-update-quads/mediators#main" },
      "mediatorRdfParse": { "@id": "urn:comunica:default:rdf-parse/mediators#parse" }
    }
  ]
}
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Config Parameters

• mediatorSparqlSerialize: A mediator over the query result serialize bus.
• mediatorSparqlSerializeMediaTypeCombiner: A mediator over the query result serialize bus.
• mediatorSparqlSerializeMediaTypeFormatCombiner: A mediator over the query result serialize bus.
• mediatorHttpInvalidate: A mediator over the HTTP invalidate bus.
• mediatorContextPreprocess: A mediator over the context preprocess bus. (optional, needed for updateQuads and parseRdf)
• mediatorUpdateQuads: A mediator over the RDF update quads bus. (optional, needed for updateQuads)
• mediatorRdfParse: A mediator over the RDF parse bus. (optional, needed for parseRdf)