--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/time/chrono/HijrahEra.java Tue Feb 12 09:25:43 2013 -0800
@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 2012, 2013, Oracle and/or its affiliates. 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. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * Copyright (c) 2012, Stephen Colebourne & Michael Nascimento Santos
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * * Neither the name of JSR-310 nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package java.time.chrono;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.time.DateTimeException;
+
+/**
+ * An era in the Hijrah calendar system.
+ * <p>
+ * The Hijrah calendar system has two eras.
+ * The date {@code 0001-01-01 (Hijrah)} is {@code 622-06-19 (ISO)}.
+ * <p>
+ * <b>Do not use {@code ordinal()} to obtain the numeric representation of {@code HijrahEra}.
+ * Use {@code getValue()} instead.</b>
+ *
+ * <h3>Specification for implementors</h3>
+ * This is an immutable and thread-safe enum.
+ *
+ * @since 1.8
+ */
+enum HijrahEra implements Era {
+
+ /**
+ * The singleton instance for the era before the current one, 'Before Anno Hegirae',
+ * which has the value 0.
+ */
+ BEFORE_AH,
+ /**
+ * The singleton instance for the current era, 'Anno Hegirae', which has the value 1.
+ */
+ AH;
+
+ //-----------------------------------------------------------------------
+ /**
+ * Obtains an instance of {@code HijrahEra} from a value.
+ * <p>
+ * The current era (from ISO date 622-06-19 onwards) has the value 1
+ * The previous era has the value 0.
+ *
+ * @param hijrahEra the era to represent, from 0 to 1
+ * @return the HijrahEra singleton, never null
+ * @throws DateTimeException if the era is invalid
+ */
+ public static HijrahEra of(int hijrahEra) {
+ switch (hijrahEra) {
+ case 0:
+ return BEFORE_AH;
+ case 1:
+ return AH;
+ default:
+ throw new DateTimeException("HijrahEra not valid");
+ }
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Gets the era numeric value.
+ * <p>
+ * The current era (from ISO date 622-06-19 onwards) has the value 1.
+ * The previous era has the value 0.
+ *
+ * @return the era value, from 0 (BEFORE_AH) to 1 (AH)
+ */
+ @Override
+ public int getValue() {
+ return ordinal();
+ }
+
+ @Override
+ public HijrahChronology getChronology() {
+ return HijrahChronology.INSTANCE;
+ }
+
+ // JDK8 default methods:
+ //-----------------------------------------------------------------------
+ @Override
+ public HijrahDate date(int year, int month, int day) {
+ return (HijrahDate)(getChronology().date(this, year, month, day));
+ }
+
+ @Override
+ public HijrahDate dateYearDay(int year, int dayOfYear) {
+ return (HijrahDate)(getChronology().dateYearDay(this, year, dayOfYear));
+ }
+
+ //-------------------------------------------------------------------------
+ /**
+ * Returns the proleptic year from this era and year of era.
+ *
+ * @param yearOfEra the year of Era
+ * @return the computed prolepticYear
+ */
+ int prolepticYear(int yearOfEra) {
+ return (this == HijrahEra.AH ? yearOfEra : 1 - yearOfEra);
+ }
+
+ //-----------------------------------------------------------------------
+ private Object writeReplace() {
+ return new Ser(Ser.HIJRAH_ERA_TYPE, this);
+ }
+
+ void writeExternal(DataOutput out) throws IOException {
+ out.writeByte(this.getValue());
+ }
+
+ static HijrahEra readExternal(DataInput in) throws IOException {
+ byte eraValue = in.readByte();
+ return HijrahEra.of(eraValue);
+ }
+
+}