/*
*******************************************************************************
* Copyright (C) 2007-2008, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
package com.ibm.icu.util;
import java.util.Date;
/**
* <code>InitialTimeZoneRule</code> represents a time zone rule
* representing a time zone effective from the beginning and
* has no actual start times.
*
* @stable ICU 3.8
*/
public class InitialTimeZoneRule extends TimeZoneRule {
private static final long serialVersionUID = 1876594993064051206L;
/**
* Constructs a <code>InitialTimeZoneRule</code> with the name, the GMT offset of its
* standard time and the amount of daylight saving offset adjustment.
*
* @param name The time zone name.
* @param rawOffset The UTC offset of its standard time in milliseconds.
* @param dstSavings The amount of daylight saving offset adjustment in milliseconds.
* If this ia a rule for standard time, the value of this argument is 0.
*
* @stable ICU 3.8
*/
public InitialTimeZoneRule(String name, int rawOffset, int dstSavings) {
super(name, rawOffset, dstSavings);
}
/**
* {@inheritDoc}
*
* @stable ICU 3.8
*/
public boolean isEquivalentTo(TimeZoneRule other) {
if (other instanceof InitialTimeZoneRule) {
return super.isEquivalentTo(other);
}
return false;
}
/**
* {@inheritDoc}<br><br>
* Note: This method in <code>InitialTimeZoneRule</code> always returns null.
*
* @stable ICU 3.8
*/
public Date getFinalStart(int prevRawOffset, int prevDSTSavings) {
// No start time available
return null;
}
/**
* {@inheritDoc}<br><br>
* Note: This method in <code>InitialTimeZoneRule</code> always returns null.
*
* @stable ICU 3.8
*/
public Date getFirstStart(int prevRawOffset, int prevDSTSavings) {
// No start time available
return null;
}
/**
* {@inheritDoc}<br><br>
* Note: This method in <code>InitialTimeZoneRule</code> always returns null.
*
* @stable ICU 3.8
*/
public Date getNextStart(long base, int prevRawOffset, int prevDSTSavings,
boolean inclusive) {
// No start time available
return null;
}
/**
* {@inheritDoc}<br><br>
* Note: This method in <code>InitialTimeZoneRule</code> always returns null.
*
* @stable ICU 3.8
*/
public Date getPreviousStart(long base, int prevRawOffset,
int prevDSTSavings, boolean inclusive) {
// No start time available
return null;
}
/**
* {@inheritDoc}<br><br>
* Note: This method in <code>InitialTimeZoneRule</code> always returns false.
* @stable ICU 3.8
*/
public boolean isTransitionRule() {
return false;
}
}
|