Class: ShEx::Algebra::NodeConstraint

Inherits:

Operator

• Object
• Operator
• ShEx::Algebra::NodeConstraint

Includes:

ShapeExpression

Defined in:

lib/shex/algebra/node_constraint.rb

Constant Summary

NAME =

:nodeConstraint

Constants inherited from Operator

Operator::ARITY

Instance Attribute Summary

Attributes inherited from Operator

#id, #logger, #operands, #options, #schema

Class Method Summary

• .from_shexj(operator, options = {}) ⇒ Operator

  Creates an operator instance from a parsed ShExJ representation.

Instance Method Summary

• #satisfies?(focus, depth: 0) ⇒ Boolean, ShapeExpression

  S is a NodeConstraint and satisfies2(focus, se) as described below in Node Constraints.

Methods inherited from Operator

#base_uri, #closed?, #each_descendant, #eql?, #expression, #expressions, #focus, #focus=, #initialize, #inspect, #iri, iri, #json_type, #matched, #matched=, #message, #message=, #not_matched, #not_satisfied, #operand, #parent, #parent=, #satisfied, #satisfied=, #satisfy, #semact?, #semantic_actions, #serialize_value, #status, #structure_error, #to_h, #to_json, #to_sxp, #to_sxp_bin, #triple_expression?, #unmatched, #unmatched=, #unsatisfied, #unsatisfied=, #validate!, value, #value

Constructor Details

This class inherits a constructor from ShEx::Algebra::Operator

Class Method Details

.from_shexj(operator, options = {}) ⇒ Operator

Creates an operator instance from a parsed ShExJ representation

Returns:

• (Operator)

Raises:

• (ArgumentError)

# File 'lib/shex/algebra/node_constraint.rb', line 12

def self.from_shexj(operator, options = {})
  raise ArgumentError unless operator.is_a?(Hash) && operator['type'] == 'NodeConstraint'
  super
end

Instance Method Details

#satisfies?(focus, depth: 0) ⇒ Boolean, ShapeExpression

S is a NodeConstraint and satisfies2(focus, se) as described below in Node Constraints. Note that testing if a node satisfies a node constraint does not require a graph or shapeMap.

Parameters:

• focus (RDF::Resource)
• depth (Integer) (defaults to: 0) —

  for logging

• options (Hash{Symbol => Object}) —

  Other, operand-specific options

Returns:

• (Boolean)
• (ShapeExpression) —

  with ‘matched` and `satisfied` accessors for matched triples and sub-expressions

Raises:

• (ShEx::NotMatched) —

  with ‘expression` accessor to access `matched` and `unmatched` statements along with `satisfied` and `unsatisfied` operations.

# File 'lib/shex/algebra/node_constraint.rb', line 22

def satisfies?(focus, depth: 0)
  status "", depth: depth
  satisfies_node_kind?(focus, depth: depth + 1) &&
  satisfies_datatype?(focus, depth: depth + 1) &&
  satisfies_string_facet?(focus, depth: depth + 1) &&
  satisfies_numeric_facet?(focus, depth: depth + 1) &&
  satisfies_values?(focus, depth: depth + 1) &&
  satisfy(depth: depth)
end