class RDF::N3::Algebra::Log::Conjunction
A function to merge formulae: logical AND.
The subject is a list of formulae. The object, which can be generated, is a formula containing a copy of each of the formulae in the list on the left. A cwm built-in function.
Constants
- NAME
- URI
Public Instance Methods
input_operand()
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Return subject operand.
@return [RDF::Term]
# File lib/rdf/n3/algebra/log/conjunction.rb, line 32 def input_operand operands.first end
resolve(list)
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Evaluates this operator by creating a new formula containing the triples from each of the formulae in the list.
@param [RDF::N3::List] list @return [RDF::N3::Algebra::Formula] @see RDF::N3::ListOperator#evaluate
# File lib/rdf/n3/algebra/log/conjunction.rb, line 16 def resolve(list) form = RDF::N3::Algebra::Formula.new(graph_name: RDF::Node.intern(list.hash)) log_debug(NAME, "list hash") {form.graph_name} list.each do |f| form.operands.push(*f.operands) end form = form.dup log_info(NAME, "result") {SXP::Generator.string form.to_sxp_bin} form end