Class: StateFlow::NamedEvent

Inherits:
Event show all
Defined in:
lib/state_flow/named_event.rb

Instance Attribute Summary collapse

Attributes inherited from Element

#destination, #origin

Class Method Summary collapse

Instance Method Summary collapse

Methods included from ExceptionHandlerClient

#exception_handlers, #exception_handling

Methods included from ActionClient

#action

Methods included from GuardClient

#guard, #guard_else, #guard_for, #guards

Methods inherited from Element

#flow, #inspect, #retry_in_recovering, #state, #to, uninspected_var, uninspected_vars, #update_to_destination

Methods included from ElementVisitable

#visit

Constructor Details

#initialize(origin, name, &block) ⇒ NamedEvent

Returns a new instance of NamedEvent.



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# File 'lib/state_flow/named_event.rb', line 7

def initialize(origin, name, &block)
  @name = name
  super(origin, &block)
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/state_flow/named_event.rb', line 6

def name
  @name
end

Class Method Details

.build_event_methods(flow) ⇒ Object 



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# File 'lib/state_flow/named_event.rb', line 19

def build_event_methods(flow)
  named_events = []
  flow.all_states.each do |state_name, state|
    state.visit do |event|
      named_events << event if event.is_a?(NamedEvent)
      [:events, :guards, :action]
    end
  end
  method_name_to_events = {}
  named_events.each do |ev|
    method_name_to_events[ev.name] ||= []
    method_name_to_events[ev.name] << ev
  end
  method_name_to_events.each do |name, events|
    flow.klass.module_eval do
      # イベントを通知するときに呼び出されるメソッド
      define_method(name) do |*args|
        result = nil
        events.each do |event|
          if event.state.include?(self.send(flow.attr_key_name))
            context = flow.prepare_context(self, args.first)
            self.state_flow_contexts[flow.attr_name] = context
            result = context.process(event)
            break
          end
        end
        result # return
      end

    end
  end
end

Instance Method Details

#process(context) ⇒ Object 



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# File 'lib/state_flow/named_event.rb', line 12

def process(context)
  state.exception_handling(context) do
    super
  end
end