class TypeMap {

    public static boolean isSigned(final SampleDimensionType type) {
        return map(type).signed;
    }

    private  TypeMap(final SampleDimensionType code,
                    final int     type,   final byte    size,
                    final boolean signed, final boolean real,
                    final Map<Number,Number> pool);
    private  TypeMap(final SampleDimensionType code,
                    final int     type,   final byte    size,
                    final boolean signed, final boolean real,
                    Number lower, Number upper, final Map<Number,Number> pool);

}