appointmentstartcomparator.java

Rapla是一个灵活的多用户资源管理系统。它提供的一些功能有：日历GUI

/*--------------------------------------------------------------------------*
 | Copyright (C) 2006 Christopher Kohlhaas                                  |
 |                                                                          |
 | This program is free software; you can redistribute it and/or modify     |
 | it under the terms of the GNU General Public License as published by the |
 | Free Software Foundation. A copy of the license has been included with   |
 | these distribution in the COPYING file, if not go to www.fsf.org         |
 |                                                                          |
 | As a special exception, you are granted the permissions to link this     |
 | program with every library, which license fulfills the Open Source       |
 | Definition as published by the Open Source Initiative (OSI).             |
 *--------------------------------------------------------------------------*/
package org.rapla.entities.domain;
import java.util.*;


public class AppointmentStartComparator implements Comparator {
    public int compare(Object o1,Object o2) {
        if (o1 instanceof Date)
            return compare((Date) o1, o2);
        if (o2 instanceof Date)
            return -1 * compare((Date) o2, o1 );

        if ( o1.equals(o2)) return 0;
        Appointment a1 = (Appointment) o1;
        Appointment a2 = (Appointment) o2;
        if (a1.getStart().before(a2.getStart()))
            return -1;
        if (a1.getStart().after(a2.getStart()))
            return 1;

        return (o1.hashCode() < o2.hashCode()) ? -1 : 1;
    }
    public int compare(Date d1,Object o2) {
        if (o2 instanceof Date)
            return d1.compareTo((Date) o2);

        Appointment a2 = (Appointment) o2;
        if (d1.before(a2.getStart())) {
            //System.out.println(a2 + ">" + d1);
            return -1;
        }
        if (d1.after(a2.getStart())) {
            //                System.out.println(a2 + "<" + d1);
            return 1;
        }

        // If appointment.getStart().equals(date)
        // set the appointment before the date
        return 1;
    }

}