Class: Wongi::Engine::BetaTest

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(field, variable) ⇒ BetaTest

Returns a new instance of BetaTest.



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

def initialize(field, variable)
  @field = field
  @variable = variable
end

Instance Attribute Details

#field ⇒ Object (readonly)

Returns the value of attribute field.



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# File 'lib/wongi-engine/beta/join_node.rb', line 4

def field
  @field
end

#variable ⇒ Object (readonly)

Returns the value of attribute variable.



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# File 'lib/wongi-engine/beta/join_node.rb', line 4

def variable
  @variable
end

Instance Method Details

#equivalent?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wongi-engine/beta/join_node.rb', line 18

def equivalent?(other)
  other.field == field && other.variable == variable
end

#matches?(token, wme) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wongi-engine/beta/join_node.rb', line 11

def matches?(token, wme)
  assignment = token[variable]
  field = wme.send(self.field)
  # field.nil? ||
  !token.has_var?(variable) || field == assignment
end