Class: SPARQL::Algebra::Operator::Multiply
- Inherits:
-
Binary
- Object
- SPARQL::Algebra::Operator
- Binary
- SPARQL::Algebra::Operator::Multiply
- Includes:
- Evaluatable
- Defined in:
- lib/sparql/algebra/operator/multiply.rb
Overview
The SPARQL numeric multiply
operator.
Constant Summary collapse
- NAME =
[:*, :multiply]
Constants inherited from Binary
Constants inherited from SPARQL::Algebra::Operator
Instance Attribute Summary
Attributes inherited from SPARQL::Algebra::Operator
Instance Method Summary collapse
-
#apply(left, right) ⇒ RDF::Literal::Numeric
Returns the arithmetic product of the operands.
Methods included from Evaluatable
Methods inherited from Binary
Methods inherited from SPARQL::Algebra::Operator
arity, base_uri, #base_uri, base_uri=, #boolean, #constant?, #eql?, #evaluatable?, evaluate, #executable?, for, #initialize, #inspect, #operand, #optimize, prefixes, #prefixes, prefixes=, #to_sse, #to_sxp, #variable?
Methods included from Expression
cast, #constant?, #evaluate, for, new, open, #optimize, parse, #to_sse, #variable?
Constructor Details
This class inherits a constructor from SPARQL::Algebra::Operator::Binary
Instance Method Details
#apply(left, right) ⇒ RDF::Literal::Numeric
Returns the arithmetic product of the operands.
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# File 'lib/sparql/algebra/operator/multiply.rb', line 25 def apply(left, right) case when left.is_a?(RDF::Literal::Numeric) && right.is_a?(RDF::Literal::Numeric) left * right else raise TypeError, "expected two RDF::Literal::Numeric operands, but got #{left.inspect} and #{right.inspect}" end end |