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Contents
module SPARQL; module Algebra
class Operator
##
# The SPARQL UPDATE `deleteData` operator.
#
# The DELETE DATA operation removes some triples, given inline in the request, if the respective graphs in the Graph Store contain those
#
# @example
# (deleteData ((triple :a foaf:knows :c)))
#
# @see http://www.w3.org/TR/sparql11-update/#deleteData
class DeleteData < Operator::Unary
include SPARQL::Algebra::Update
NAME = [:deleteData]
##
# Executes this upate on the given `writable` 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 queryable.
# @raise [IOError]
# If `from` does not exist, unless the `silent` operator is present
# @see http://www.w3.org/TR/sparql11-update/
def execute(queryable, options = {})
operand.each do |op|
debug(options) {"DeleteData #{op.to_sxp}"}
queryable.delete(op)
end
queryable
end
end # DeleteData
end # Operator
end; end # SPARQL::Algebra
Version data entries
17 entries across 17 versions & 1 rubygems