operator == method

  1. @override
bool operator ==(
  1. Object other
)

The equality operator.

The default behavior for all Objects is to return true if and only if this object and other are the same object.

Override this method to specify a different equality relation on a class. The overriding method must still be an equivalence relation. That is, it must be:

  • Total: It must return a boolean for all arguments. It should never throw.

  • Reflexive: For all objects o, o == o must be true.

  • Symmetric: For all objects o1 and o2, o1 == o2 and o2 == o1 must either both be true, or both be false.

  • Transitive: For all objects o1, o2, and o3, if o1 == o2 and o2 == o3 are true, then o1 == o3 must be true.

The method should also be consistent over time, so whether two objects are equal should only change if at least one of the objects was modified.

If a subclass overrides the equality operator, it should override the hashCode method as well to maintain consistency.

Implementation

@override
bool operator ==(Object other) {
  if (identical(this, other)) return true;
  if (other is! RoadProfileCondition) return false;
  RoadProfileCondition _other = other;
  return roadType == _other.roadType &&
      DeepCollectionEquality().equals(requiredFunctionalClasses, _other.requiredFunctionalClasses) &&
      DeepCollectionEquality().equals(requiredRouteLevels, _other.requiredRouteLevels) &&
      requiredNumberOfLanes == _other.requiredNumberOfLanes &&
      isControlledAccess == _other.isControlledAccess &&
      isLimitedAccessRoad == _other.isLimitedAccessRoad &&
      isMultiplyDigitilized == _other.isMultiplyDigitilized &&
      isRoadLegallyDivided == _other.isRoadLegallyDivided &&
      isRoadPhysicallyDivided == _other.isRoadPhysicallyDivided &&
      isPriorityRoad == _other.isPriorityRoad &&
      isUnpaved == _other.isUnpaved &&
      isMotorisedVehiclesOnly == _other.isMotorisedVehiclesOnly &&
      isUrban == _other.isUrban &&
      isRural == _other.isRural;
}