Class: Statesman::Adapters::Memory

Inherits:
Object
  • Object
show all
Defined in:
lib/statesman/adapters/memory.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(transition_class, parent_model, observer) ⇒ Memory

We only accept mode as a parameter to maintain a consistent interface with other adapters which require it.



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# File 'lib/statesman/adapters/memory.rb', line 12

def initialize(transition_class, parent_model, observer)
  @history = []
  @transition_class = transition_class
  @parent_model = parent_model
  @observer = observer
end

Instance Attribute Details

#history ⇒ Object (readonly)

Returns the value of attribute history.



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# File 'lib/statesman/adapters/memory.rb', line 7

def history
  @history
end

#parent_model ⇒ Object (readonly)

Returns the value of attribute parent_model.



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# File 'lib/statesman/adapters/memory.rb', line 8

def parent_model
  @parent_model
end

#transition_class ⇒ Object (readonly)

Returns the value of attribute transition_class.



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# File 'lib/statesman/adapters/memory.rb', line 6

def transition_class
  @transition_class
end

Instance Method Details

#create(from, to, metadata = {}) ⇒ Object 



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# File 'lib/statesman/adapters/memory.rb', line 19

def create(from, to, metadata = {})
  transition = transition_class.new(to, next_sort_key, metadata)

  @observer.execute(:before, from, to, transition)
  @history << transition
  @observer.execute(:after, from, to, transition)
  @observer.execute(:after_commit, from, to, transition)
  transition
end

#last ⇒ Object 



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# File 'lib/statesman/adapters/memory.rb', line 29

def last
  @history.sort_by(&:sort_key).last
end