{CodeRoyale}
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Multiple ChoiceIntermediate 45s

Tell, Don't Ask vs getters

A service reads ten getters off an Order, computes a total, and saves it back. Which refactor better respects encapsulation and SRP?
Options
  1. 1Add more getters so the service can stay the single place computing totals
  2. 2Move the total computation into Order as a behavior and ask the object for the result
  3. 3Make all Order fields public to avoid getter overhead
  4. 4Cache the total in a global map keyed by order id
architecturesolidencapsulation

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