Class: Perpetuity::IdentityMap

Inherits:

Object

• Object
• Perpetuity::IdentityMap

Defined in:

lib/perpetuity/identity_map.rb

Instance Attribute Summary

• #map ⇒ Object readonly

  Returns the value of attribute map.

Instance Method Summary

• #<<(object) ⇒ Object
• #[](klass, id) ⇒ Object
• #initialize ⇒ IdentityMap constructor

  A new instance of IdentityMap.

Constructor Details

#initialize ⇒ IdentityMap

Returns a new instance of IdentityMap.

# File 'lib/perpetuity/identity_map.rb', line 5

def initialize
  @map = Hash.new { |hash, key| hash[key] = {} }
end

Instance Attribute Details

#map ⇒ Object (readonly)

Returns the value of attribute map.

# File 'lib/perpetuity/identity_map.rb', line 3

def map
  @map
end

Instance Method Details

#<<(object) ⇒ Object

# File 'lib/perpetuity/identity_map.rb', line 13

def << object
  map[object.class][object.id] = object
end

#[](klass, id) ⇒ Object

# File 'lib/perpetuity/identity_map.rb', line 9

def [] klass, id
  map[klass][id]
end