Class: RDF::N3::Algebra::Log::Content
- Inherits:
-
ResourceOperator
- Object
- SPARQL::Algebra::Operator
- SPARQL::Algebra::Operator::Binary
- ResourceOperator
- RDF::N3::Algebra::Log::Content
- Defined in:
- vendor/bundler/ruby/3.3.0/bundler/gems/rdf-n3-a6ef81a7e1ce/lib/rdf/n3/algebra/log/content.rb
Overview
This connects a document and a string that represents it.
(Cwm knows how to go get a document in order to evaluate this.)
Note that the content-type of the information is not given and so must be known or guessed.
Constant Summary collapse
Constants included from Util::Logger
Constants inherited from SPARQL::Algebra::Operator::Binary
SPARQL::Algebra::Operator::Binary::ARITY
Constants inherited from SPARQL::Algebra::Operator
SPARQL::Algebra::Operator::ARITY, SPARQL::Algebra::Operator::IsURI
Constants included from SPARQL::Algebra::Expression
SPARQL::Algebra::Expression::PATTERN_PARENTS
Instance Attribute Summary
Attributes included from Enumerable
Attributes included from SPARQL::Algebra::Query
Attributes inherited from SPARQL::Algebra::Operator
Instance Method Summary collapse
-
#resolve(resource, position: :subject) ⇒ RDF::Term
Reads the subject into the object.
Methods inherited from ResourceOperator
#as_literal, #execute, #input_operand, #valid?
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
Methods included from Isomorphic
#bijection_to, #isomorphic_with?
Methods included from Countable
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
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, #mergable?, #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(resource, position: :subject) ⇒ RDF::Term
Reads the subject into the object.
Returns nil if resource does not validate, given its position
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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-n3-a6ef81a7e1ce/lib/rdf/n3/algebra/log/content.rb', line 19 def resolve(resource, position: :subject) case position when :subject return nil unless resource.literal? || resource.uri? content = begin as_literal(RDF::Util::File.open_file(resource) {|f| f.read}) rescue IOError nil end when :object return nil unless resource.literal? || resource.variable? resource end end |