Class: Believer::Counter

Inherits:
Object
  • Object
show all
Defined in:
lib/believer/counter.rb

Instance Method Summary collapse

Constructor Details

#initialize(v = 0, initial_val = nil) ⇒ Counter

Returns a new instance of Counter.



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# File 'lib/believer/counter.rb', line 5

def initialize(v = 0, initial_val = nil)
  @value = v
  @initial_value = initial_val.nil? ? @value : initial_val
end

Instance Method Details

#adopt_value(v) ⇒ Object 



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# File 'lib/believer/counter.rb', line 15

def adopt_value(v)
  @value = 0 if v.nil?
  @value = v.to_i
  self
end

#changed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/believer/counter.rb', line 43

def changed?
  diff > 0
end

#decr(val = 1) ⇒ Object 



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# File 'lib/believer/counter.rb', line 30

def decr(val = 1)
  @value = @value - val
  self
end

#decremented? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/believer/counter.rb', line 35

def decremented?
  initial_value > @value
end

#diff ⇒ Object 



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# File 'lib/believer/counter.rb', line 39

def diff
  (@value - initial_value).abs
end

#incr(val = 1) ⇒ Object 



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# File 'lib/believer/counter.rb', line 21

def incr(val = 1)
  @value = @value + val
  self
end

#incremented? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/believer/counter.rb', line 26

def incremented?
  @value > initial_value
end

#initial_value ⇒ Object 



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# File 'lib/believer/counter.rb', line 51

def initial_value
  if @initial_value.nil?
    @initial_value = self.to_i
  end
  @initial_value
end

#reset! ⇒ Object 



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# File 'lib/believer/counter.rb', line 10

def reset!
  @value = initial_value
  self
end

#to_i ⇒ Object 



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# File 'lib/believer/counter.rb', line 47

def to_i
  @value
end