Class: Sfn::Cache::Stamped

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

Overview

Wrapper to auto stamp values

Instance Method Summary collapse

Constructor Details

#initialize(name, base, cache) ⇒ Stamped

Create new instance

Parameters:



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# File 'lib/sfn/cache.rb', line 343

def initialize(name, base, cache)
  @name = name.to_sym
  @base = base
  @cache = cache
end

Instance Method Details

#restamp! ⇒ Object

Force a timestamp update



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# File 'lib/sfn/cache.rb', line 374

def restamp!
  self.value = value
end

#set? ⇒ TrueClass, FalseClass

Returns is value set.

Returns:

  • (TrueClass, FalseClass) —

    is value set



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# File 'lib/sfn/cache.rb', line 364

def set?
  @base.value.is_a?(Hash)
end

#stamp ⇒ Float

Returns timestamp of last set (or 0.0 if unset).

Returns:

  • (Float) —

    timestamp of last set (or 0.0 if unset)



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# File 'lib/sfn/cache.rb', line 369

def stamp
  set? ? @base.value[:stamp] : 0.0
end

#update_allowed? ⇒ TrueClass, FalseClass

Returns update is allowed based on stamp and limits.

Returns:

  • (TrueClass, FalseClass) —

    update is allowed based on stamp and limits



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# File 'lib/sfn/cache.rb', line 379

def update_allowed?
  !set? || @cache.time_check_allow?(@name, @base.value[:stamp])
end

#value ⇒ Object

Returns value stored.

Returns:

  • (Object) —

    value stored



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# File 'lib/sfn/cache.rb', line 350

def value
  @base.value[:value] if set?
end

#value=(v) ⇒ Object

Store value and update timestamp

Parameters:

  • v (Object) —

    value

Returns:

  • (Object) 


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# File 'lib/sfn/cache.rb', line 358

def value=(v)
  @base.value = {:stamp => Time.now.to_f, :value => v}
  v
end