Class: Believer::Counter

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

Overview

The counter value

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 6

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 26

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

#changed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/believer/counter.rb', line 57

def changed?
  diff > 0
end

#decr(val = 1) ⇒ Object 



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# File 'lib/believer/counter.rb', line 44

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

#decremented? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/believer/counter.rb', line 49

def decremented?
  initial_value > @value
end

#diff ⇒ Object 



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# File 'lib/believer/counter.rb', line 53

def diff
  (@value - initial_value).abs
end

#incr(val = 1) ⇒ Object 



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

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

#incremented? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/believer/counter.rb', line 40

def incremented?
  @value > initial_value
end

#initial_value ⇒ Object 



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# File 'lib/believer/counter.rb', line 66

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

#reconcile! ⇒ Object 



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# File 'lib/believer/counter.rb', line 11

def reconcile!
  @initial_value = @value
  self
end

#reset! ⇒ Object 



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# File 'lib/believer/counter.rb', line 16

def reset!
  @value = 0
  self
end

#undo_changes! ⇒ Object 



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

def undo_changes!
  @value = initial_value
  self
end

#value ⇒ Object Also known as: to_i 



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# File 'lib/believer/counter.rb', line 61

def value
  @value
end