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Multiple ChoiceBeginner 45s

Value object: equality semantics

A Money value object should be compared using which kind of equality?
Options
  1. 1Reference equality by default. It compares whether both share one object.
  2. 2Equality by database primary key. It compares the generated row id.
  3. 3Equality by creation timestamp. It compares each value's construction time.
  4. 4Structural equality based on all attributes with no identity
dddvalue-objectentity

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