Class: KBS::AlphaMemory

Inherits:
Object
  • Object
show all
Defined in:
lib/kbs/alpha_memory.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(pattern = {}) ⇒ AlphaMemory

Returns a new instance of AlphaMemory.



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# File 'lib/kbs/alpha_memory.rb', line 8

def initialize(pattern = {})
  @items = []
  @successors = []
  @pattern = pattern
  @linked = true
end

Instance Attribute Details

#items ⇒ Object

Returns the value of attribute items.



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# File 'lib/kbs/alpha_memory.rb', line 5

def items
  @items
end

#linked ⇒ Object (readonly)

Returns the value of attribute linked.



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# File 'lib/kbs/alpha_memory.rb', line 6

def linked
  @linked
end

#pattern ⇒ Object

Returns the value of attribute pattern.



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# File 'lib/kbs/alpha_memory.rb', line 5

def pattern
  @pattern
end

#successors ⇒ Object

Returns the value of attribute successors.



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# File 'lib/kbs/alpha_memory.rb', line 5

def successors
  @successors
end

Instance Method Details

#activate(fact) ⇒ Object 



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# File 'lib/kbs/alpha_memory.rb', line 25

def activate(fact)
  return unless @linked
  @items << fact
  @successors.each { |s| s.right_activate(fact) }
end

#deactivate(fact) ⇒ Object 



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# File 'lib/kbs/alpha_memory.rb', line 31

def deactivate(fact)
  return unless @linked
  @items.delete(fact)
  @successors.each { |s| s.right_deactivate(fact) if s.respond_to?(:right_deactivate) }
end

#relink! ⇒ Object 



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# File 'lib/kbs/alpha_memory.rb', line 20

def relink!
  @linked = true
  @successors.each { |s| s.right_relink! if s.respond_to?(:right_relink!) }
end

#unlink! ⇒ Object 



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# File 'lib/kbs/alpha_memory.rb', line 15

def unlink!
  @linked = false
  @successors.each { |s| s.right_unlink! if s.respond_to?(:right_unlink!) }
end