Class: RDF::N3::Algebra::List::Length

Inherits:

RDF::N3::Algebra::ListOperator

show all

Defined in:: vendor/bundler/ruby/3.3.0/bundler/gems/rdf-n3-a6ef81a7e1ce/lib/rdf/n3/algebra/list/length.rb

Overview

Iff the subject is a list and the object is the last thing that list, then this is true. The object can be calculated as a function of the list.

The object can be calculated as a function of the list.

Examples:

{ ( 1 2 3 4 5 6 ) list:length 6 } => { :test1 a :SUCCESS }.

Constant Summary collapse

NAME =

:listLength

URI =

RDF::N3::List.length

Instance Attribute Summary

Attributes included from Enumerable

#existentials, #universals

Attributes included from SPARQL::Algebra::Query

#solutions

Attributes inherited from SPARQL::Algebra::Operator

#operands

Instance Method Summary collapse

#resolve(list) ⇒ RDF::Term
Resolves this operator using the given variable bindings.

Methods inherited from RDF::N3::Algebra::ListOperator

#as_literal, #execute, #input_operand, #validate

Methods included from Builtin

#each, #evaluate, #hash, #input_operand, #rank, #to_uri

Methods included from Util::Logger

#log_debug, #log_depth, #log_error, #log_fatal, #log_info, #log_recover, #log_recovering?, #log_statistics, #log_warn, #logger

Methods included from Enumerable

add_entailment, #canonicalize, #canonicalize!, #dump, #each_graph, #each_object, #each_predicate, #each_quad, #each_statement, #each_subject, #each_term, #each_triple, #entail, #enum_graph, #enum_object, #enum_predicate, #enum_quad, #enum_statement, #enum_subject, #enum_term, #enum_triple, #graph?, #graph_names, #invalid?, #method_missing, #object?, #objects, #predicate?, #predicates, #project_graph, #quad?, #quads, #respond_to_missing?, #statement?, #statements, #subject?, #subjects, #supports?, #term?, #terms, #to_a, #to_h, #to_set, #triple?, #triples, #valid?, #validate!

Methods included from Util::Aliasing::LateBound

#alias_method

Methods included from Isomorphic

#bijection_to, #isomorphic_with?

Methods included from Countable

#count, #empty?

Methods included from SPARQL::Algebra::Update

#execute, #graph_name=, #unshift, #variables

Methods included from SPARQL::Algebra::Query

#each_solution, #empty?, #execute, #failed?, #graph_name=, #matched?, #query_yields_boolean?, #query_yields_solutions?, #query_yields_statements?, #unshift, #variables

Methods inherited from SPARQL::Algebra::Operator::Binary

#initialize

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, #formulae, #initialize, #inspect, #ndvars, #node?, #operand, #optimize, #optimize!, #parent, #parent=, prefixes, #prefixes, prefixes=, #rewrite, #to_binary, #to_sparql, to_sparql, #to_sxp, #to_sxp_bin, #validate!, #variable?, #variables, #vars

Methods included from SPARQL::Algebra::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::Binary

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class RDF::Enumerable

Instance Method Details

#resolve(list) ⇒ `RDF::Term`

Resolves this operator using the given variable bindings. If the last operand is a variable, it creates a solution for each element in the list.

Parameters:

list (RDF::N3::List)

Returns:

(RDF::Term)