Built in ontologies

Domain

• Core
• Document Hierarchy

Templates

Core

ct:Document

The most generic LDT template for Linked Data resources

Matches all URIs

Maps to SPARQL query

DESCRIBE ?this
WHERE {
    ?this ?p ?o
}

ct:SPARQLEndpoint

SPARQL endpoint template

Matches /sparql

Defines all SPARQL 1.1 Protocol parameters

ct:GraphStore

Matches /service

Defines all SPARQL 1.1 Graph Store Protocol parameters

Named Graphs

ngt:Document

Extends ct:Document

Maps to SPARQL query

DESCRIBE ?this
WHERE
  { GRAPH ?g
      { ?this  ?p  ?o }
  }

Document Hierarchy

dht:Container

Extends ct:Document

Maps to SPARQL query

PREFIX  foaf: <http://xmlns.com/foaf/0.1/>
DESCRIBE ?this ?child
WHERE
  { ?this ?p ?o
    OPTIONAL
      { { SELECT DISTINCT ?child
          WHERE
            {   { ?child sioc:has_parent ?this }
              UNION
                { ?child sioc:has_container ?this }
            }
        }
      }
  }

A template needs (directly or indirectly) extend dht:Container and contain a sub-SELECT in its query in order to support pagination.

Topic Hierarchy