Java Date Compare Compare(Date dtA, Date dtB, boolean bUnkIsPast)

Description

Compare

License

Open Source License

Declaration

public static int Compare(Date dtA, Date dtB, boolean bUnkIsPast)

Method Source Code

//package com.java2s;
/*//from w  ww.jav  a 2 s . c om
  KeePass Password Safe - The Open-Source Password Manager
  Copyright (C) 2003-2014 Dominik Reichl <dominik.reichl@t-online.de>
    
  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; either version 2 of the License, or
  (at your option) any later version.
    
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
    
  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

import java.util.*;

public class Main {
    private static final Date m_dtInvMin = new Date(2999, 12, 27, 23, 59, 59);
    private static final Date m_dtInvMax = new Date(2999, 12, 29, 23, 59, 59);

    public static int Compare(Date dtA, Date dtB, boolean bUnkIsPast) {
        if (bUnkIsPast) {
            // 2999-12-28 23:59:59 in KeePass 1.x means 'unknown';
            // expect time zone corruption (twice)
            // boolean bInvA = ((dtA.Year == 2999) && (dtA.Month == 12) &&
            //   (dtA.Day >= 27) && (dtA.Day <= 29) && (dtA.Minute == 59) &&
            //   (dtA.Second == 59));
            // boolean bInvB = ((dtB.Year == 2999) && (dtB.Month == 12) &&
            //   (dtB.Day >= 27) && (dtB.Day <= 29) && (dtB.Minute == 59) &&
            //   (dtB.Second == 59));
            // Faster due to internal implementation of Date:
            boolean bInvA = ((dtA.getTime() >= m_dtInvMin.getTime()) && (dtA.getTime() <= m_dtInvMax.getTime())
                    && (dtA.getMinutes() == 59) && (dtA.getSeconds() == 59));
            boolean bInvB = ((dtB.getTime() >= m_dtInvMin.getTime()) && (dtB.getTime() <= m_dtInvMax.getTime())
                    && (dtB.getMinutes() == 59) && (dtB.getSeconds() == 59));

            if (bInvA)
                return (bInvB ? 0 : -1);
            if (bInvB)
                return 1;
        }

        return dtA.compareTo(dtB);
    }
}

Java Date Compare Compare(Date dtA, Date dtB, boolean bUnkIsPast)

Description

License

Declaration

Method Source Code

Related