Class: Decider::InMemory

Inherits:
Object
  • Object
show all
Defined in:
lib/decider/in_memory.rb

Instance Method Summary collapse

Constructor Details

#initialize(decider) ⇒ InMemory

Returns a new instance of InMemory.



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# File 'lib/decider/in_memory.rb', line 7

def initialize(decider)
  @decider = decider
  @atom = Concurrent::Atom.new(decider.initial_state)
end

Instance Method Details

#call(command) ⇒ Object 



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# File 'lib/decider/in_memory.rb', line 12

def call(command)
  events = decider.decide(command, state)
  atom.swap { |state| events.reduce(state, &decider.method(:evolve)) }
  events
end

#state ⇒ Object 



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# File 'lib/decider/in_memory.rb', line 18

def state
  atom.value
end