Class: Glossarist::V3::HyperedgeIndex

Inherits:
Object
  • Object
show all
Defined in:
lib/glossarist/v3/hyperedge_index.rb

Overview

HyperedgeIndex — derived reverse-lookup index over a flat list of hyperedges.

A hyperedge is directional: 1 comprehensive → N members. To answer the reverse query ("which hyperedges is X a member of?"), build a HyperedgeIndex on demand from the flat list and consult #for_member. The index is NOT stored on the concept — it's a derived view.

Use cases:

index.for_comprehensive("OIML:5.1")
# => 6 hyperedges (different criteria — the OIML pattern)
index.for_member("OIML:5.13")
# => hyperedges where 5.13 appears as a member

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(hyperedges) ⇒ HyperedgeIndex

Returns a new instance of HyperedgeIndex.



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# File 'lib/glossarist/v3/hyperedge_index.rb', line 22

def initialize(hyperedges)
  @by_comprehensive = {}
  @by_member = {}

  Array(hyperedges).each do |h|
    register_comprehensive(h)
    register_members(h)
  end

  @by_comprehensive.freeze
  @by_member.freeze
end

Instance Attribute Details

#by_comprehensive ⇒ Object (readonly)

Returns the value of attribute by_comprehensive.



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# File 'lib/glossarist/v3/hyperedge_index.rb', line 20

def by_comprehensive
  @by_comprehensive
end

#by_member ⇒ Object (readonly)

Returns the value of attribute by_member.



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# File 'lib/glossarist/v3/hyperedge_index.rb', line 20

def by_member
  @by_member
end

Instance Method Details

#all_concept_ids ⇒ Object

Every concept that appears anywhere in this hyperedge set (as comprehensive OR as a member), with its roles.



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# File 'lib/glossarist/v3/hyperedge_index.rb', line 51

def all_concept_ids
  (@by_comprehensive.keys | @by_member.keys).freeze
end

#for_comprehensive(qualified_id_or_ref) ⇒ Object

All hyperedges where the given concept is the comprehensive. Accepts either a qualified-id string ("VIM:1.2") or a ConceptRef.



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# File 'lib/glossarist/v3/hyperedge_index.rb', line 37

def for_comprehensive(qualified_id_or_ref)
  key = resolve_key(qualified_id_or_ref)
  @by_comprehensive[key] || []
end

#for_member(qualified_id_or_ref) ⇒ Object

All hyperedges where the given concept is one of the members. Accepts either a qualified-id string or a ConceptRef.



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# File 'lib/glossarist/v3/hyperedge_index.rb', line 44

def for_member(qualified_id_or_ref)
  key = resolve_key(qualified_id_or_ref)
  @by_member[key] || []
end