/* Copyright (c) 2001-2009, The HSQL Development Group
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of the HSQL Development Group nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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package org.hsqldb.types;

/**
 * Implementation of data item for TIMESTAMP.<p>
 *
 * @author Fred Toussi (fredt@users dot sourceforge.net)
 * @version 1.9.0
 * @since 1.9.0
 */
public class TimestampData {

    long seconds;
    int  nanos;
    int  zone;

    public TimestampData(long seconds) {
        this.seconds = seconds;
    }

    public TimestampData(long seconds, int nanos) {
        this.seconds = seconds;
        this.nanos   = nanos;
    }

    public TimestampData(long seconds, int nanos, int zoneSeconds) {

        this.seconds = seconds;
        this.nanos   = nanos;
        this.zone    = zoneSeconds;
    }

    public long getSeconds() {
        return seconds;
    }

    public int getNanos() {
        return nanos;
    }

    public int getZone() {
        return zone;
    }

    public boolean equals(Object other) {

        if (other instanceof TimestampData) {
            return seconds == ((TimestampData) other).seconds
                   && nanos == ((TimestampData) other).nanos
                   && zone == ((TimestampData) other).zone;
        }

        return false;
    }

    public int hashCode() {
        return (int) seconds ^ nanos;
    }

    public int compareTo(TimestampData b) {

        long diff = seconds - b.seconds;

        if (diff == 0) {
            diff = nanos - b.nanos;

            if (diff == 0) {
                return 0;
            }
        }

        return diff > 0 ? 1
                        : -1;
    }
}