localecomparator.java

这个weblogging 设计得比较精巧

package org.roller.util;

import java.util.Locale;
import java.util.Comparator;
import java.io.Serializable;

public class LocaleComparator implements Comparator, Serializable
{
    public int compare(Object obj1, Object obj2)
    {
        if (obj1 instanceof Locale && obj2 instanceof Locale)
        {
            Locale locale1 = (Locale)obj1;
            Locale locale2 = (Locale)obj2;
            int compName = locale1.getDisplayName().compareTo(locale2.getDisplayName());
            if (compName == 0)
            {
                return locale1.toString().compareTo(locale2.toString());
            }
            return compName;
        }
        return 0;
    }
/* Do Comparators need to implement equals()? -Lance
    public boolean equals(Object obj)
    {
        if (obj instanceof LocaleComparator)
        {
            if (obj.equals(this)) return true;
        }
        return false;
    }
*/
}