Comunica Collect Provenance Query Operation Actor

Uses a Comunica observer to collect metadata from query operations executed on the query operation bus, and passes it on to the query result.

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 @prov4itdata/actor-query-operation-collect-provenance

Configure

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

{
  "@context": [
    ...
    "https://linkedsoftwaredependencies.org/bundles/npm/@prov4itdata/actor-query-operation-collect-provenance/^1.0.0/components/context.jsonld"  
  ],
  "actors": [
    ...
    {
      "@id": "config-sets:sparql-queryoperators.json#myCollectProvenanceQueryOperator",
      "@type": "ActorQueryOperationCollectProvenance",
      "cbqo:mediatorQueryOperation": { "@id": "config-sets:sparql-queryoperators.json#mediatorQueryOperation" }
    }
  ]
}

Config Parameters

• cbqo:mediatorQueryOperation: A mediator over the Query Operation bus.