Java Timestamp adjustTimestamp(Timestamp stamp, int adjType, int adjQuantity, TimeZone timeZone, Locale locale)

Description

Perform date/time arithmetic on a Timestamp.

License

Apache License

Parameter

Parameter	Description
stamp	date/time to perform arithmetic on
adjType	the adjustment type to perform. Use one of the java.util.Calendar fields.
adjQuantity	the adjustment quantity.
timeZone	a parameter
locale	a parameter

Return

adjusted Timestamp

Declaration

public static Timestamp adjustTimestamp(Timestamp stamp, int adjType, int adjQuantity, TimeZone timeZone,
        Locale locale) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License./*from  ww w  .  j  a v  a 2 s . com*/
 *******************************************************************************/

import java.sql.Timestamp;

import java.util.*;

public class Main {
    /**
     * Perform date/time arithmetic on a Timestamp. This is the only accurate
     * way to perform date/time arithmetic across locales and time zones.
     *
     * @param stamp date/time to perform arithmetic on
     * @param adjType the adjustment type to perform. Use one of the
     *            java.util.Calendar fields.
     * @param adjQuantity the adjustment quantity.
     * @param timeZone
     * @param locale
     * @return adjusted Timestamp
     * @see Calendar
     */
    public static Timestamp adjustTimestamp(Timestamp stamp, int adjType, int adjQuantity, TimeZone timeZone,
            Locale locale) {
        Calendar tempCal = toCalendar(stamp, timeZone, locale);
        tempCal.add(adjType, adjQuantity);
        return new Timestamp(tempCal.getTimeInMillis());
    }

    public static Timestamp adjustTimestamp(Timestamp stamp, Integer adjType, Integer adjQuantity) {
        Calendar tempCal = toCalendar(stamp);
        tempCal.add(adjType, adjQuantity);
        return new Timestamp(tempCal.getTimeInMillis());
    }

    public static Calendar toCalendar(Timestamp stamp) {
        Calendar cal = Calendar.getInstance();
        if (stamp != null) {
            cal.setTimeInMillis(stamp.getTime());
        }
        return cal;
    }

    /**
     * Returns a Calendar object initialized to the specified date/time, time
     * zone, and locale.
     *
     * @param date date/time to use
     * @param timeZone
     * @param locale
     * @return Calendar object
     * @see Calendar
     */
    public static Calendar toCalendar(Date date, TimeZone timeZone, Locale locale) {
        Calendar cal = getCalendarInstance(timeZone, locale);
        if (date != null) {
            cal.setTime(date);
        }
        return cal;
    }

    public static Calendar getCalendarInstance(TimeZone timeZone, Locale locale) {
        return Calendar.getInstance(timeZone, locale);
    }
}

Related

1. addHoursToTimestamp(Timestamp start, int hours)
2. addMilli(Timestamp nowDate, int period)
3. addMonth(java.sql.Timestamp src, int val)
4. addMonths(Timestamp refDate, int nrOfMonthsToAdd)
5. addTime(java.sql.Timestamp start, int year, int month, int day)
6. adjustTimestamp(Timestamp stamp, Integer adjType, Integer adjQuantity)
7. adjustTimestamp(Timestamp timestamp, String timezone, int gmtOffset)
8. afterMinutes(Timestamp date, long min)
9. argMapTimestamp(Map argMap, Map argMapNotUsed, String key)