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/* Copyright (C) 1998, 1999 Cygnus Solutions
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package java.util;
/**
* @author Per Bothner <bothner@cygnus.com>
* @date October 24, 1998.
*/
/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3.
* Status: getAvailableIDs, getDefault, getTimeZone only know about GMT.
*/
public abstract class TimeZone implements java.io.Serializable, Cloneable
{
public static final int SHORT = 0;
public static final int LONG = 1;
// The fields are as specified in Sun's "Serialized Form"
// in the JDK 1.2 beta 4 API specification.
String ID;
static final TimeZone zoneGMT = new SimpleTimeZone(0, "GMT");
private static TimeZone zoneDefault;
public TimeZone ()
{
}
public abstract int getOffset (int era, int year, int month,
int day, int dayOfWeek, int milliseconds);
public abstract void setRawOffset (int offsetMillis);
public abstract int getRawOffset ();
public String getID () { return ID; }
public void setID (String ID) { this.ID = ID; }
public final String getDisplayName()
{
return ID; // FIXME
}
// public final String getDisplayName (Local locale) { ... } FIXME
public final String getDisplayName (boolean daylight, int style)
{
return ID; // FIXME
}
/*
public final String getDisplayName (boolean daylight, int style, Locale locale)
{
return ID; // FIXME
}
*/
public abstract boolean useDaylightTime();
public abstract boolean inDaylightTime (Date date);
public static TimeZone getTimeZone (String ID)
{
return zoneGMT; // FIXME
}
public static String[] getAvailableIDs()
{ // FIXME - only knows about GMT
String[] zones = new String[1];
zones[0] = "GMT";
return zones;
}
public static String[] getAvailableIDs(int rawOffset)
{
return rawOffset == 0 ? getAvailableIDs() : new String[0]; // FIXME
}
private static synchronized TimeZone setDefault()
{
if (zoneDefault == null)
{
try
{
String id = System.getProperty("user.timezone");
if (id != null && ! id.equals("GMT"))
zoneDefault = getTimeZone(id);
}
catch (Exception ex)
{
}
if (zoneDefault == null)
zoneDefault = zoneGMT;
}
return zoneDefault;
}
public static TimeZone getDefault()
{
return zoneDefault == null ? setDefault() : zoneDefault;
}
public static void setDefault (TimeZone zone) { zoneDefault = zone; }
public boolean hasSameRules (TimeZone other)
{
return this == other;
}
// public Object clone ();
}
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