Lady’s Gitweb - Vocab/blob - data/classes/rdfs¦Container

   1 <?xml version="1.0"?>
   2 <!--
   3 SPDX-FileCopyrightText: 2024 Lady <https://www.ladys.computer/about/#lady>
   4 SPDX-License-Identifier: CC0-1.0
   5 -->
   6 <!DOCTYPE Class SYSTEM "../../DTD">
   7 <Class>
   8         <label xml:lang="en">Container</label>
   9         <comment xml:lang="en">
  10                 <p>
  11                         A collection of zero or more things.
  12                 </p>
  13                 <p>
  14                         Membership within Containers is indicated through the use of <code>rdf:_$</code> properties, where <code>$</code> is a <em>positive</em> (i·e nonzero) integer with no leading zeroes.
  15                         These properties are all considered subproperties of <resource name="rdfs:member"/>, although there are no normative requirements on processors recognizing this fact.
  16                         There is no requirement that membership properties be dense; i·e just because a Collection has values for <resource name="rdf:_1"/> and <resource name="rdf:_3"/> does not imply it has a value for <resource name="rdf:_2"/>.
  17                 </p>
  18                 <p>
  19                         Containers are allowed to contain themselves as members.
  20                         The subclasses <ptr target="rdf:Bag"/>, <ptr target="rdf:Seq"/>, and <ptr target="rdf:Alt"/> convey different intentions about the relationship between the items in containers.
  21                 </p>
  22                 <p>
  23                         Because the relationship between <resource name="rdf:_1"/>, <resource name="rdf:_2"/>, ⁊·c and <resource name="rdfs:member"/> is often implicit, and because there is no upper limit to membership properties or restrictions on their length, Containers can be difficult to reason about.
  24                         <ref target="rdf:List">Lists</ref> are a better solution in most cases.
  25                 </p>
  26         </comment>
  27         <isDefinedBy>
  28                 <SpecificResource source="(RDF11-SCHEMA)" fragment="ch_container"/>
  29         </isDefinedBy>
  30 </Class>