/*
// Licensed to Julian Hyde under one or more contributor license
// agreements. See the NOTICE file distributed with this work for
// additional information regarding copyright ownership.
//
// Julian Hyde 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.
*/
package org.eigenbase.util14;
import java.sql.Date;
import java.text.*;
import java.util.Calendar;
import java.util.TimeZone;
/**
* ZonelessDate is a date value without a time zone.
*/
public class ZonelessDate extends ZonelessDatetime {
//~ Static fields/initializers ---------------------------------------------
/**
* SerialVersionUID created with JDK 1.5 serialver tool.
*/
private static final long serialVersionUID = -6385775986251759394L;
//~ Instance fields --------------------------------------------------------
protected transient Date tempDate;
//~ Constructors -----------------------------------------------------------
/**
* Constructs a ZonelessDate.
*/
public ZonelessDate() {
}
//~ Methods ----------------------------------------------------------------
// override ZonelessDatetime
public void setZonelessTime(long value) {
super.setZonelessTime(value);
clearTime();
}
// override ZonelessDatetime
public void setZonedTime(long value, TimeZone zone) {
super.setZonedTime(value, zone);
clearTime();
}
// implement ZonelessDatetime
public Object toJdbcObject() {
return new Date(getJdbcDate(DateTimeUtil.DEFAULT_ZONE));
}
/**
* Converts this ZonelessDate to a java.sql.Date and formats it via the
* {@link java.sql.Date#toString() toString()} method of that class.
*
* @return the formatted date string
*/
public String toString() {
Date jdbcDate = getTempDate(getJdbcDate(DateTimeUtil.DEFAULT_ZONE));
return jdbcDate.toString();
}
/**
* Formats this ZonelessDate via a SimpleDateFormat
*
* @param format format string, as required by {@link SimpleDateFormat}
* @return the formatted date string
*/
public String toString(String format) {
DateFormat formatter = getFormatter(format);
Date jdbcDate = getTempDate(getTime());
return formatter.format(jdbcDate);
}
/**
* Parses a string as a ZonelessDate.
*
* @param s a string representing a date in ISO format, i.e. according to
* the SimpleDateFormat string "yyyy-MM-dd"
* @return the parsed date, or null if parsing failed
*/
public static ZonelessDate parse(String s) {
return parse(s, DateTimeUtil.DATE_FORMAT_STRING);
}
/**
* Parses a string as a ZonelessDate with a given format string.
*
* @param s a string representing a date in ISO format, i.e. according to
* the SimpleDateFormat string "yyyy-MM-dd"
* @param format format string as per {@link SimpleDateFormat}
* @return the parsed date, or null if parsing failed
*/
public static ZonelessDate parse(String s, String format) {
Calendar cal =
DateTimeUtil.parseDateFormat(
s,
format,
DateTimeUtil.GMT_ZONE);
if (cal == null) {
return null;
}
ZonelessDate zd = new ZonelessDate();
zd.setZonelessTime(cal.getTimeInMillis());
return zd;
}
/**
* Gets a temporary Date object. The same object is returned every time.
*/
protected Date getTempDate(long value) {
if (tempDate == null) {
tempDate = new Date(value);
} else {
tempDate.setTime(value);
}
return tempDate;
}
}
// End ZonelessDate.java