Class: Phenomenal::Implication

Inherits:
Relationship show all
Defined in:
lib/phenomenal/relationship/implication.rb

Overview

Define the behavior of the Implication relationship

Instance Attribute Summary collapse

Attributes inherited from Relationship

#feature, #manager, #source, #target

Instance Method Summary collapse

Methods inherited from Relationship

#==, #refresh, #to_s

Constructor Details

#initialize(source, target, feature) ⇒ Implication

Returns a new instance of Implication.



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# File 'lib/phenomenal/relationship/implication.rb', line 4

def initialize(source,target,feature)
  super(source,target,feature)
  @activation_counter=0
end

Instance Attribute Details

#activation_counter ⇒ Object

Returns the value of attribute activation_counter.



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# File 'lib/phenomenal/relationship/implication.rb', line 3

def activation_counter
  @activation_counter
end

Instance Method Details

#activate_context(context) ⇒ Object 



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# File 'lib/phenomenal/relationship/implication.rb', line 23

def activate_context(context)
  if source==context
    target.activate
    self.activation_counter+=1
  end
end

#activate_feature ⇒ Object 



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# File 'lib/phenomenal/relationship/implication.rb', line 9

def activate_feature
  if source.active?
    target.activate
    self.activation_counter+=1
  end
end

#deactivate_context(context) ⇒ Object 



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# File 'lib/phenomenal/relationship/implication.rb', line 30

def deactivate_context(context)
  if source==context && activation_counter>0
    target.deactivate
    self.activation_counter-=1
  elsif activation_counter>0
    source.deactivate
    self.activation_counter-=1
  else
    # Nothing to do
  end
end

#deactivate_feature ⇒ Object 



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# File 'lib/phenomenal/relationship/implication.rb', line 16

def deactivate_feature
  if activation_counter>0
    target.deactivate
    self.activation_counter-=1
  end
end