Class: SPARQL::Algebra::Operator::Update
- Inherits:
-
SPARQL::Algebra::Operator
- Object
- SPARQL::Algebra::Operator
- SPARQL::Algebra::Operator::Update
- Includes:
- Update
- Defined in:
- lib/sparql/algebra/operator/update.rb
Overview
The SPARQL GraphPattern prefix
operator.
[29] Update ::= Prologue ( Update1 ( ‘;’ Update )? )?
Constant Summary collapse
- NAME =
[:update]
Constants inherited from SPARQL::Algebra::Operator
Constants included from Expression
Instance Attribute Summary
Attributes inherited from SPARQL::Algebra::Operator
Instance Method Summary collapse
-
#execute(queryable, **options) ⇒ RDF::Queryable
Executes this upate on the given
queryable
graph or repository. -
#to_sparql(**options) ⇒ String
Returns a partial SPARQL grammar for this operator.
Methods included from Update
#graph_name=, #unshift, #variables
Methods inherited from SPARQL::Algebra::Operator
#aggregate?, arity, #base_uri, base_uri, base_uri=, #bind, #boolean, #constant?, #deep_dup, #each_descendant, #eql?, #evaluatable?, evaluate, #executable?, #first_ancestor, for, #initialize, #inspect, #ndvars, #node?, #operand, #optimize, #optimize!, #parent, #parent=, #prefixes, prefixes, prefixes=, #rewrite, #to_binary, to_sparql, #to_sxp, #to_sxp_bin, #validate!, #variable?, #variables, #vars
Methods included from Expression
cast, #constant?, #evaluate, extension, extension?, extensions, for, #invalid?, new, #node?, open, #optimize, #optimize!, parse, register_extension, #to_sxp_bin, #valid?, #validate!, #variable?
Constructor Details
This class inherits a constructor from SPARQL::Algebra::Operator
Instance Method Details
#execute(queryable, **options) ⇒ RDF::Queryable
Executes this upate on the given queryable
graph or repository.
67 68 69 70 71 72 73 74 |
# File 'lib/sparql/algebra/operator/update.rb', line 67 def execute(queryable, **) debug() {"Update"} raise IOError, "queryable is not mutable" unless queryable.mutable? operands.each do |op| op.execute(queryable, **.merge(depth: [:depth].to_i + 1)) end queryable end |
#to_sparql(**options) ⇒ String
Returns a partial SPARQL grammar for this operator.
81 82 83 |
# File 'lib/sparql/algebra/operator/update.rb', line 81 def to_sparql(**) str = operands.map { |e| e.to_sparql(**) }.join(";\n") end |