Module: CachedAttr

Defined in:: lib/cached_attr.rb

Overview

This module implements attributes whose reader method executes once, and the returned value is cached for later use. This might be handy for expensive operations.

An example, given the following method:

def object_to_get

if @object_to_get.nil?
  @object_to_get = [code_to_retrieve_object]
end
@object_to_get

end

…the cached attribute format would be:

cache_attr :object_to_get do

[code_to_retrieve_object]

end

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

.included(base) ⇒ Object

Instance Method Summary collapse

#cached_attributes_store ⇒ Object

The store of cached properties.

Class Method Details

.included(base) ⇒ `Object`



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# File 'lib/cached_attr.rb', line 20

def self.included(base)
  base.extend(ClassMethods)
end

Instance Method Details

#cached_attributes_store ⇒ `Object`

The store of cached properties



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# File 'lib/cached_attr.rb', line 111

def cached_attributes_store
  @cached_attributes_store ||= {}
end