class SPARQL::Algebra::Operator::Reduced
The SPARQL
GraphPattern `reduced` operator.
@example
(prefix ((xsd: <http://www.w3.org/2001/XMLSchema#>) (: <http://example/>)) (reduced (project (?v) (bgp (triple ?x ?p ?v)))))
Constants
- NAME
Public Instance Methods
execute(queryable, **options, &block)
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Executes this query on the given `queryable` graph or repository. Removes duplicate solutions from the solution set.
@param [RDF::Queryable] queryable
the graph or repository to query
@param [Hash{Symbol => Object}] options
any additional keyword options
@yield [solution]
each matching solution
@yieldparam [RDF::Query::Solution] solution @yieldreturn [void] ignored @return [RDF::Query::Solutions]
the resulting solution sequence
@see www.w3.org/TR/sparql11-query/#sparqlAlgebra
# File lib/sparql/algebra/operator/reduced.rb, line 34 def execute(queryable, **options, &block) @solutions = operands.last. execute(queryable, depth: options[:depth].to_i + 1, **options).reduced @solutions.each(&block) if block_given? @solutions end