@comunica/mediator-number

Comunica Number Mediator

A mediator that can mediate over a single number field. It can either choose the actor with the maximum or with the minimum value.

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/mediator-number

Configure

After installing, this mediator can be instantiated as follows:

{
  "@context": [
    ...
    "https://linkedsoftwaredependencies.org/bundles/npm/@comunica/mediator-number/^1.0.0/components/context.jsonld"  
  ],
  "actors": [
    ...
    {
      "@type": "SomeActor",
      "someMediator": {
        "@id": "config-sets:sparql-queryoperators.json#mediatorQueryOperation",
        "@type": "MediatorNumberMin",
        "cmn:Mediator/Number/field": "httpRequests",
        "ignoreErrors": true,
        "cc:Mediator/bus": { "@id": "cbqo:Bus/QueryOperation" }
      }
    }
  ]
}

Instead of MediatorNumberMin, MediatorNumberMax could also be used to resolve to the maximum value.

Config Parameters

• cc:Mediator/bus: Identifier of the bus to mediate over.
• cmn:Mediator/Number/field: The field name to mediate over.
• cmn:Mediator/Number/ignoreErrors: Optional flag to indicate if actors that throw test errors should be ignored, defaults to false.

Changelog

v1.18.0 - 2020-11-02

Fixed

• Fix eager accept header boundary bug, Closes #534
• Fix incorrect return type for bindings(), Closes #742
• Add missing query result interface exports

Added

• Add Microdata to RDF parser
• Add actor whitelist to LoggerPretty

Changed

• Use fixed hashing functions
• Update sparqlee to achieve smaller bundle sizes
• Bump sparqlee with improved XPath and Unicode support
• Allow quad streams on followed links to be transformed
• Allow hypermedia links to define custom context entries
• Allow JSON-LD strict mode to be enabled via context
• Allow custom JSON-LD document loader to be passed via context

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