Class: ReVIEW::Book::Cache

Inherits:
Object show all
Defined in:
lib/review/book/cache.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Cache

Returns a new instance of Cache.



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# File 'lib/review/book/cache.rb', line 14

def initialize
  @store = {}
end

Instance Method Details

#cached?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/review/book/cache.rb', line 33

def cached?(key)
  @store.key?(key)
end

#fetch(key, &block) ⇒ Object

key should be Symbol, not String

Raises:

  • (ArgumentError) 


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# File 'lib/review/book/cache.rb', line 23

def fetch(key, &block)
  raise ArgumentError, 'Key should be Symbol' unless key.is_a?(Symbol)

  if cached?(key)
    read(key)
  else
    exec_block_and_save(key, &block)
  end
end

#reset ⇒ Object 



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# File 'lib/review/book/cache.rb', line 18

def reset
  @store.clear
end