Class: Ro::Cache

Inherits:
Map
  • Object
show all
Defined in:
lib/ro/cache.rb

Instance Method Summary collapse

Instance Method Details

#invalidate(key) ⇒ Object 



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# File 'lib/ro/cache.rb', line 21

def invalidate(key)
  prefix = Array(key).dup.tap{|array| array.pop}
  set(prefix, {})
end

#read(key, &block) ⇒ Object 



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# File 'lib/ro/cache.rb', line 8

def read(key, &block)
  if has?(key)
    get(key)
  else
    if block
      value = block.call
      write(key, value)
    else
      nil
    end
  end
end

#write(key, value) ⇒ Object 



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# File 'lib/ro/cache.rb', line 3

def write(key, value)
  invalidate(key)
  set(key => value)
end