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Contents
module SPARQL; module Algebra
class Operator
##
# The SPARQL GraphPattern `prefix` operator.
#
# @example
# (update
# (modify
# (bgp (triple ?s ?p ?o))
# (insert ((triple ?s ?p "q")))))
#
# @see https://www.w3.org/TR/sparql11-update/#graphUpdate
class Update < Operator
include SPARQL::Algebra::Update
NAME = [:update]
##
# Executes this upate on the given `queryable` graph or repository.
#
# @param [RDF::Queryable] queryable
# the graph or repository to write
# @param [Hash{Symbol => Object}] options
# any additional keyword options
# @option options [Boolean] debug
# Query execution debugging
# @return [RDF::Queryable]
# Returns the dataset.
# @raise [NotImplementedError]
# If an attempt is made to perform an unsupported operation
# @raise [IOError]
# If `queryable` is immutable
# @see https://www.w3.org/TR/sparql11-update/
def execute(queryable, **options)
debug(options) {"Update"}
raise IOError, "queryable is not mutable" unless queryable.mutable?
operands.each do |op|
op.execute(queryable, depth: options[:depth].to_i + 1, **options)
end
queryable
end
end # Update
end # Operator
end; end # SPARQL::Algebra
Version data entries
7 entries across 7 versions & 1 rubygems