modules/rdf/resource.zzm

rdf-0.0.3 documentation

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Package

Name
rdf
Version
0.0.3
Uploaded
2026-06-12 23:55:02
Repository
https://github.com/tobyink/zuzu-rdf
Dependencies
Metadata
zuzu-distribution.json
Archive
Download .tar.gz

NAME

rdf/resource - Lightweight RDF resource wrappers.

SYNOPSIS

  from rdf/resource import RDFResource;
  from rdf/term import rdf_iri, rdf_literal;

  let alice := new RDFResource(
      store: store,
      term: rdf_iri("http://example.com/alice"),
  );
  alice.add(rdf_iri("http://example.com/name"), rdf_literal("Alice"));

DESCRIPTION

RDFResource wraps a subject term and store to make common resource operations concise. It does not cache results; every read calls the underlying store.

EXPORTS

Classes

  • RDFResource

    Construct with store and term.

    • values(predicate, graph := null)

      Returns all objects for the resource and predicate.

    • value(predicate, fallback := null, graph := null)

      Returns the first matching object, or fallback.

    • add(predicate, object, graph := null)

      Adds one quad using the wrapped term as subject and returns the resource.

    • remove(predicate := null, object := null, graph := null)

      Removes matching quads for the wrapped subject and returns the resource.

    • types(graph := null)

      Returns objects of rdf:type statements for the resource.

    • has_type(type, graph := null)

      Returns true if the resource has the supplied rdf:type.

COPYRIGHT AND LICENCE

rdf/resource is copyright Toby Inkster.

It is free software; you may redistribute it and/or modify it under the terms of either the Artistic License 1.0 or the GNU General Public License version 2.