Class: Cache

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

Direct Known Subclasses

FileCache

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Cache

Returns a new instance of Cache.



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# File 'lib/libcache/cache.rb', line 7

def initialize
  ENV['TZ'] = 'UTC'
  @scheduler = Rufus::Scheduler.new
end

Instance Attribute Details

#expiry_time ⇒ Object

Returns the value of attribute expiry_time.



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# File 'lib/libcache/cache.rb', line 5

def expiry_time
  @expiry_time
end

#refresh ⇒ Object

Returns the value of attribute refresh.



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# File 'lib/libcache/cache.rb', line 5

def refresh
  @refresh
end

#store ⇒ Object

Returns the value of attribute store.



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# File 'lib/libcache/cache.rb', line 5

def store
  @store
end

Instance Method Details

#create_store ⇒ Object 



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# File 'lib/libcache/cache.rb', line 12

def create_store
  @cache = Hash.new
end

#get(key) ⇒ Object 



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# File 'lib/libcache/cache.rb', line 23

def get(key)
  if @cache[key] == nil
    return refresh.call key
  end
  return @cache[key]
end

#invalidate(key) ⇒ Object 



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# File 'lib/libcache/cache.rb', line 30

def invalidate(key)
  @cache.delete key
end

#invalidateAll ⇒ Object 



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# File 'lib/libcache/cache.rb', line 34

def invalidateAll
  @cache.clear
end

#put(key, value) ⇒ Object 



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# File 'lib/libcache/cache.rb', line 16

def put(key, value)
  @cache[key] = value
  @scheduler.in expiry_time, :blocking => true do
    invalidate key
  end
end