import StringComparator;

public class PriorityComparator 
    implements Comparator {

    //constructor

    StringComparator comp = new StringComparator();

    String pri1;
    String pri2;

    public boolean lessThan(Object first, Object second) {

        pri1 = ((MailMessage)first).getField("priority");
        pri2 = ((MailMessage)second).getField("priority");

        return (comp.lessThan(pri1,pri2));

    }
    
    public boolean equals(Object first, Object second) {

        return (comp.equals(((MailMessage)first).getField("priority"), ((MailMessage)second).getField("priority")));

    }

}