| initialize,Node-method {redland} | R Documentation |
Initialize a Node object.
Description
A Node has an associated type corresponding to the RDF component that it is representing. The list of possible types is "resource", "literal" or "blank".
Usage
## S4 method for signature 'Node'
initialize(.Object, world, literal, uri, blank, datatype_uri, language)
Arguments
.Object |
the Node object to be initialized |
world |
a World object |
literal |
a literal character value to be assigned to the node |
uri |
a uri character value to be assigned to the node |
blank |
a blank node identifier to be assigned to the node |
datatype_uri |
a uri used to specify the datatype of a literal node, i.e. "http://www.w3.org/2001/XMLSchema#string" |
language |
a character value specifying the RDF language tag (excluding the "@" symbol), i.e. "fr" |
Details
The url=' and 'literal=' arguments determine which type of Node is created. The Node type affects how the Node is processed in serialization, for example a Node created with 'node1 <- new("Node", literal="http://www.example.com")' is processed differently that a Node created with 'node1 <- new("Node", url="http://www.example.com")', with the former being processed as an RDF literal and the latter processed as an RDF resource.
Value
the Node object
Note
Refer to https://www.w3.org/TR/rdf11-concepts information on language tags.