@Override
    public short applyAsShort(ENTITY object) {
        return mapper.applyAsShort(field.get(object));
    }
Default implementation of {@link FieldToShort}.

@author Emil Forslund
@since  3.1.0
runtime-parent/runtime-field/src/main/java/com/speedment/runtime/field/internal/expression/FieldToShortImpl.java