Class: Pho::DatatypeProperty

Inherits:
Object
  • Object
show all
Defined in:
lib/pho/field_predicate_map.rb

Overview

Captures information about a mapped datatype from a Field Predicate Map

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(uri, property_uri, name, analyzer = nil) ⇒ DatatypeProperty

Returns a new instance of DatatypeProperty.



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# File 'lib/pho/field_predicate_map.rb', line 64

def initialize(uri, property_uri, name, analyzer=nil)
    @uri = uri
    @property_uri = property_uri
    @name = name        
    @analyzer = analyzer
end

Instance Attribute Details

#analyzer ⇒ Object (readonly)

URI of the analyzer associated with this property



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# File 'lib/pho/field_predicate_map.rb', line 62

def analyzer
  @analyzer
end

#name ⇒ Object (readonly)

Short name for the property



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# File 'lib/pho/field_predicate_map.rb', line 60

def name
  @name
end

#property_uri ⇒ Object (readonly)

RDF predicate URI for the mapped property



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# File 'lib/pho/field_predicate_map.rb', line 58

def property_uri
  @property_uri
end

#uri ⇒ Object (readonly)

URI for this mapping



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# File 'lib/pho/field_predicate_map.rb', line 56

def uri
  @uri
end

Instance Method Details

#to_rdf(ns = true) ⇒ Object

Convert this object into an RDF representation. Generates a simple rdf:Description, optionally including namespaces

ns

include namespace declarations



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# File 'lib/pho/field_predicate_map.rb', line 73

def to_rdf(ns=true)
  rdf = "<rdf:Description " 
  if ns
    rdf << " xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\" xmlns:frm=\"#{Pho::Namespaces::FRAME}\" xmlns:bf=\"#{Pho::Namespaces::CONFIG}\" "        
  end 
  rdf << " rdf:about=\"#{@uri}\">"
  rdf << " <frm:property rdf:resource=\"#{@property_uri}\"/>"
  rdf << " <frm:name>#{@name}</frm:name>"
  if @analyzer != nil
    rdf << " <bf:analyzer rdf:resource=\"#{@analyzer}\" />"  
  end      
  rdf << "</rdf:Description>"
  return rdf  
end