Module: Aquam::MachineClassMethods

Included in:
Machine
Defined in:
lib/aquam/machine_class_methods.rb

Instance Method Summary collapse

Instance Method Details

#attribute(name = nil) ⇒ Object 



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# File 'lib/aquam/machine_class_methods.rb', line 5

def attribute(name = nil)
  name ? @attribute = name : @attribute ||= :state
end

#event(name, &block) ⇒ Object 



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# File 'lib/aquam/machine_class_methods.rb', line 21

def event(name, &block)
  Aquam::EventTransitions.new self, name, &block
end

#events ⇒ Object 



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# File 'lib/aquam/machine_class_methods.rb', line 13

def events
  @event ||= Hash.new { |hash, key| hash[key] = {} }
end

#state(name, klass) ⇒ Object 



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# File 'lib/aquam/machine_class_methods.rb', line 17

def state(name, klass)
  states[name] = klass
end

#states ⇒ Object 



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# File 'lib/aquam/machine_class_methods.rb', line 9

def states
  @states ||= {}
end

#transition(from, to, event_name) ⇒ Object 



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# File 'lib/aquam/machine_class_methods.rb', line 25

def transition(from, to, event_name)
  fail Aquam::InvalidStateError if !valid_state?(from) || !valid_state?(to)

  events[event_name][from] = to
end

#valid_event?(event) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/aquam/machine_class_methods.rb', line 35

def valid_event?(event)
  events.keys.include? event
end

#valid_state?(state) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/aquam/machine_class_methods.rb', line 31

def valid_state?(state)
  states.keys.include? state
end