Re: Is there a descending sorted class?

RC <raymond.chui@noaa.gov> wrote:


public class ReverseComparator<T> implements Comparator<T>
{
    private Comparator<T> ascending;

    public ReverseComparator(Comparator<T> asc)
    {
        this.ascending = asc;
    }

    public int compare(T a, T b)
    {
        int asc = ascending.compare(a, b);

        if (asc == Integer.MIN_VALUE) return Integer.MAX_VALUE;
        else return -asc;
    }
}

public class NaturalComparator<T extends Comparable<T>>
    implements Comparator<T>
{
    public ReverseComparator()
    {
    }

    public int compare(T a, T b)
    {
        int asc = a.compareTo(b);

        if (asc == Integer.MIN_VALUE) return Integer.MAX_VALUE;
        else return -asc;
    }
}

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