@Override
    public Ordering getOrdering() {
        return Ordering.RETAIN;
    }
Maps between {@code Double} and {@code float} values by simply casting to
lower precision.

@author Emil Forslund
@since  3.0.2
runtime-parent/runtime-typemapper/src/main/java/com/speedment/runtime/typemapper/doubles/PrimitiveDoubleToFloatMapper.java