--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/util/calendar/Era.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.util.calendar;
+
+import java.util.Locale;
+import java.util.TimeZone;
+
+/**
+ * The class <code>Era</code> represents a calendar era that defines a
+ * period of time in which the same year numbering is used. For
+ * example, Gregorian year 2004 is <I>Heisei</I> 16 in the Japanese
+ * calendar system. An era starts at any point of time (Gregorian) that is
+ * represented by <code>CalendarDate</code>.
+ *
+ * <p><code>Era</code>s that are applicable to a particular calendar
+ * system can be obtained by calling {@link CalendarSystem#getEras}
+ * one of which can be used to specify a date in
+ * <code>CalendarDate</code>.
+ *
+ * <p>The following era names are defined in this release.
+ * <!-- TODO: use HTML table -->
+ * <pre><tt>
+ * Calendar system Era name Since (in Gregorian)
+ * -----------------------------------------------------------------------
+ * Japanese calendar Meiji 1868-01-01 midnight local time
+ * Taisho 1912-07-30 midnight local time
+ * Showa 1926-12-26 midnight local time
+ * Heisei 1989-01-08 midnight local time
+ * Julian calendar BeforeCommonEra -292275055-05-16T16:47:04.192Z
+ * CommonEra 0000-12-30 midnight local time
+ * Taiwanese calendar MinGuo 1911-01-01 midnight local time
+ * Thai Buddhist calendar BuddhistEra -543-01-01 midnight local time
+ * -----------------------------------------------------------------------
+ * </tt></pre>
+ *
+ * @author Masayoshi Okutsu
+ * @since 1.5
+ */
+
+public final class Era {
+ private final String name;
+ private final String abbr;
+ private final long since;
+ private final CalendarDate sinceDate;
+ private final boolean localTime;
+
+ /**
+ * Constructs an <code>Era</code> instance.
+ *
+ * @param name the era name (e.g., "BeforeCommonEra" for the Julian calendar system)
+ * @param abbr the abbreviation of the era name (e.g., "B.C.E." for "BeforeCommonEra")
+ * @param since the time (millisecond offset from January 1, 1970
+ * (Gregorian) UTC or local time) when the era starts, inclusive.
+ * @param localTime <code>true</code> if <code>since</code>
+ * specifies a local time; <code>false</code> if
+ * <code>since</code> specifies UTC
+ */
+ public Era(String name, String abbr, long since, boolean localTime) {
+ this.name = name;
+ this.abbr = abbr;
+ this.since = since;
+ this.localTime = localTime;
+ Gregorian gcal = CalendarSystem.getGregorianCalendar();
+ BaseCalendar.Date d = (BaseCalendar.Date) gcal.newCalendarDate(null);
+ gcal.getCalendarDate(since, d);
+ sinceDate = new ImmutableGregorianDate(d);
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public String getDisplayName(Locale locale) {
+ return name;
+ }
+
+ public String getAbbreviation() {
+ return abbr;
+ }
+
+ public String getDiaplayAbbreviation(Locale locale) {
+ return abbr;
+ }
+
+ public long getSince(TimeZone zone) {
+ if (zone == null || !localTime) {
+ return since;
+ }
+ int offset = zone.getOffset(since);
+ return since - offset;
+ }
+
+ public CalendarDate getSinceDate() {
+ return sinceDate;
+ }
+
+ public boolean isLocalTime() {
+ return localTime;
+ }
+
+ public boolean equals(Object o) {
+ if (!(o instanceof Era)) {
+ return false;
+ }
+ Era that = (Era) o;
+ return name.equals(that.name)
+ && abbr.equals(that.abbr)
+ && since == that.since
+ && localTime == that.localTime;
+ }
+
+ private int hash = 0;
+
+ public int hashCode() {
+ if (hash == 0) {
+ hash = name.hashCode() ^ abbr.hashCode() ^ (int)since ^ (int)(since >> 32)
+ ^ (localTime ? 1 : 0);
+ }
+ return hash;
+ }
+
+ public String toString() {
+ StringBuilder sb = new StringBuilder();
+ sb.append('[');
+ sb.append(getName()).append(" (");
+ sb.append(getAbbreviation()).append(')');
+ sb.append(" since ").append(getSinceDate());
+ if (localTime) {
+ sb.setLength(sb.length() - 1); // remove 'Z'
+ sb.append(" local time");
+ }
+ sb.append(']');
+ return sb.toString();
+ }
+}