NullableMass

Overview

Abstract data type

NullableMass is a simple physical quantity type for the dimension M. NullableMass is abstract and has two concrete subtypes:

• a Mass is an actual value for a physical quantity with a numerical value and a unit of measurement;

• a NullMass is a null value that explicitly indicates the absence of an actual physical quantity.

Subtypes

• Mass

• NullMass

Implementation in Proteus Schema

All data attributes with type NullableMass are implemented as DEXPI generic attributes for physical quantities.

Example

See the examples for Mass and NullMass.