Class: Ruleby::Core::Fact

Inherits:
Object
  • Object
show all
Defined in:
lib/core/engine.rb

Overview

A fact is an object that is stored in working memory. The rules in the system will either look for the existence or absence of particular facts.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object, token) ⇒ Fact

Returns a new instance of Fact.



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# File 'lib/core/engine.rb', line 107

def initialize(object, token)
  @token = token      
  @object = object
end

Instance Attribute Details

#object ⇒ Object (readonly)

Returns the value of attribute object.



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# File 'lib/core/engine.rb', line 105

def object
  @object
end

#recency ⇒ Object

Returns the value of attribute recency.



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# File 'lib/core/engine.rb', line 104

def recency
  @recency
end

#token ⇒ Object

Returns the value of attribute token.



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# File 'lib/core/engine.rb', line 103

def token
  @token
end

Instance Method Details

#==(fact) ⇒ Object 



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# File 'lib/core/engine.rb', line 116

def ==(fact)
  return fact != nil && fact.id == id
end

#id ⇒ Object 



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# File 'lib/core/engine.rb', line 112

def id
  return object.object_id
end

#to_s ⇒ Object 



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# File 'lib/core/engine.rb', line 120

def to_s
  return "[Fact |#{@recency}|#{@object.to_s}]"
end