voltrb/volt

require 'volt/utils/generic_counting_pool'

module Volt
  # The identity map ensures that there is only one copy of a model
  # used on the front end at a time.
  class ModelIdentityMap < GenericCountingPool
    # add extends GenericCountingPool so it can add in a model without
    # a direct lookup.  We use this when we create a model (without an id)
    # then save it and it gets assigned an id.
    def add(id, model)
      @pool[id] = [1, model]
    end
  end
end