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How can I include null values in the list of acceptable values (Validation Rule = In)?
Also, if an attribute is null, how does that impact the Type (Validation Rule = Type)?
I would add a NullAttributeMapper before the AttributeValidator and map the Null value to an actual value (e.g."Unknown" for strings, -999 for numeric).Then you can add that value to the list of acceptable values in the AttributeValidator.
Null is not a value.There is no operand.(no pointer etc.)
Null is not represented by a type.
Unless..
Type:Nullis a quadruped, chimeric Pokémon with traits from a variety of creatures.
Or more seriously
an implementation-defined null pointer constant, cast to void.
etc.
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