Class: Axiom::Relation::Base

Inherits:

Axiom::Relation

• Object
• Axiom::Relation
• Axiom::Relation::Base

Defined in:

lib/axiom/relation/base.rb

Overview

A class that represents a base relation

Instance Attribute Summary

• #name ⇒ #to_s readonly

  The base relation name.

Attributes inherited from Axiom::Relation

#header

Instance Method Summary

• #initialize(name, header, tuples = Empty::ZERO_TUPLE) ⇒ undefined constructor private

  Initialize a base relation.

Methods inherited from Axiom::Relation

#==, #[], #directions, #each, #empty?, #include?, #materialize, #materialized?, new, #one, #replace

Methods included from Visitable

#accept

Constructor Details

#initialize(name, header, tuples = Empty::ZERO_TUPLE) ⇒ undefined

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Initialize a base relation

Parameters:

• name (#to_s) —

  the relation name

• header (Header, #to_ary) —

  the relation header

• tuples (Enumerable) (defaults to: Empty::ZERO_TUPLE) —

  the relation tuples

# File 'lib/axiom/relation/base.rb', line 32

def initialize(name, header, tuples = Empty::ZERO_TUPLE)
  super(header, tuples)
  @name = freeze_object(name.to_s)
end

Instance Attribute Details

#name ⇒ #to_s (readonly)

The base relation name

Examples:

name = base.name

Returns:

• (#to_s)

# File 'lib/axiom/relation/base.rb', line 18

def name
  @name
end