Class: SPARQL::Server::Request::Item

Inherits:
Object
  • Object
show all
Defined in:
lib/sparql-server.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object, schema) ⇒ Item

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# File 'lib/sparql-server.rb', line 66

def initialize(object, schema)
  @schema = schema
  @object = object
  @conditions = []
end

Instance Attribute Details

#masters ⇒ Object (readonly)

Returns the value of attribute masters.



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# File 'lib/sparql-server.rb', line 61

def masters
  @masters
end

#object ⇒ Object (readonly)

Returns the value of attribute object.



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# File 'lib/sparql-server.rb', line 60

def object
  @object
end

Instance Method Details

#<<(triple) ⇒ Object

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# File 'lib/sparql-server.rb', line 82

def <<(triple)
  @conditions << triple
end

#==(other) ⇒ Object

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# File 'lib/sparql-server.rb', line 75

def ==(other)
  other.kind_of?(Item) ? @object == other.object : @object == other
end

#belongs_to?(other) ⇒ Boolean

-

Returns:

  • (Boolean) 


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# File 'lib/sparql-server.rb', line 117

def belongs_to?(other)
  if rdf_class.nil? or other.rdf_class.nil?
    return false
  end 
  attribute = rdf_class.has?(nil, other.rdf_class)
  if attribute.nil? or not attribute.belongs_to?
    return false
  end
  attribute.type
end

#inspect ⇒ Object 



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# File 'lib/sparql-server.rb', line 128

def inspect
  @object
end

#instances ⇒ Object

- 


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# File 'lib/sparql-server.rb', line 89

def instances
  rdf_class ? rdf_class.find(:all, :conditions => find_options) : []
end

#rdf_class ⇒ Object

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# File 'lib/sparql-server.rb', line 110

def rdf_class
  @schema.select { |cls| cls.type == rdf_type }.first
end

#solvable? ⇒ Boolean

-

Returns:

  • (Boolean) 


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# File 'lib/sparql-server.rb', line 103

def solvable?
  predefined? or rdf_type
end

#to_sql(name) ⇒ Object

- 


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# File 'lib/sparql-server.rb', line 96

def to_sql(name)
  predefined? ? value_to_sql(name) : model_to_sql(name)
end