rdf:Bag

Definition

A Bag (a resource having type rdf:Bag) represents a group of resources or literals, possibly including duplicate members, where there is no significance in the order of the members.

EXAMPLE: A Bag might be used to describe a group of part numbers in which the order of entry or processing of the part numbers does not matter.

Schema

<rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag">

<rdfs:isDefinedBy rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/>

<rdfs:label>Bag</rdfs:label>

<rdfs:comment>The class of unordered containers.</rdfs:comment>

<rdfs:subClassOf rdf:resource="http://www.w3.org/2000/01/rdf-schema#Container"/>

</rdfs:Class>

Example listing

Triple

RDF/XML

<rdf:Description rdf:about="http://example.org/courses/6.001">

<s:students>

<rdf:Bag>

<rdf:li rdf:resource="http://example.org/students/Amy"/>

<rdf:li rdf:resource="http://example.org/students/Mohamed"/>

<rdf:li rdf:resource="http://example.org/students/Johann"/>

</rdf:Bag>

</s:students>

</rdf:Description>

Other information

To describe a resource as being a Bag, the resource is given an rdf:type property whose value is the predefined resources rdf:Bag.

The rdf:Bag class is the class of RDF 'Bag' containers. It is a subclass of rdfs:Container. Whilst formally it is no different from an rdf:Seq or an rdf:Alt, the rdf:Bag class is used conventionally to indicate to a human reader that the container is intended to be unordered.