Class: Wongi::Engine::FilterNode

Inherits:
BetaNode
  • Object
show all
Defined in:
lib/wongi-engine/beta/filter_node.rb

Instance Attribute Summary collapse

Attributes inherited from BetaNode

#children, #context, #parent, #rete

Instance Method Summary collapse

Methods inherited from BetaNode

#assignment_node, #beta_memory, #delete_token, #depth, #empty?, #filter_node, #join_node, #ncc_node, #neg_node, #network, #optional_node, #refresh, #size, #tokens

Methods included from CoreExt

included

Constructor Details

#initialize(parent, test) ⇒ FilterNode

Returns a new instance of FilterNode.



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# File 'lib/wongi-engine/beta/filter_node.rb', line 8

def initialize parent, test
  super parent
  self.test = test
end

Instance Attribute Details

#test ⇒ Object

Returns the value of attribute test.



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# File 'lib/wongi-engine/beta/filter_node.rb', line 6

def test
  @test
end

Instance Method Details

#beta_activate(token) ⇒ Object 



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# File 'lib/wongi-engine/beta/filter_node.rb', line 13

def beta_activate token
  if test.passes? token
    children.each do |child|
      child.beta_activate Token.new( child, token, nil, {} )
    end
  end
end

#beta_deactivate(token) ⇒ Object 



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# File 'lib/wongi-engine/beta/filter_node.rb', line 21

def beta_deactivate token
  children.each do |child|
    child.tokens.each do |t|
      if t.parent == token
        child.beta_deactivate t
        #token.destroy
      end
    end
  end
end

#equivalent?(test) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wongi-engine/beta/filter_node.rb', line 32

def equivalent? test
  test == self.test
end

#refresh_child(child) ⇒ Object 



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# File 'lib/wongi-engine/beta/filter_node.rb', line 36

def refresh_child child
  tmp = children
  self.children = [ child ]
  parent.tokens.each do |token|
    beta_activate token
  end
  self.children = tmp
end