1.1 --- a/emul/mini/src/main/java/java/lang/Enum.java Tue Feb 26 14:55:55 2013 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,254 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 2003, 2009, Oracle and/or its affiliates. All rights reserved.
1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 - *
1.8 - * This code is free software; you can redistribute it and/or modify it
1.9 - * under the terms of the GNU General Public License version 2 only, as
1.10 - * published by the Free Software Foundation. Oracle designates this
1.11 - * particular file as subject to the "Classpath" exception as provided
1.12 - * by Oracle in the LICENSE file that accompanied this code.
1.13 - *
1.14 - * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 - * version 2 for more details (a copy is included in the LICENSE file that
1.18 - * accompanied this code).
1.19 - *
1.20 - * You should have received a copy of the GNU General Public License version
1.21 - * 2 along with this work; if not, write to the Free Software Foundation,
1.22 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 - *
1.24 - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 - * or visit www.oracle.com if you need additional information or have any
1.26 - * questions.
1.27 - */
1.28 -
1.29 -package java.lang;
1.30 -
1.31 -import java.io.Serializable;
1.32 -import java.io.IOException;
1.33 -
1.34 -/**
1.35 - * This is the common base class of all Java language enumeration types.
1.36 - *
1.37 - * More information about enums, including descriptions of the
1.38 - * implicitly declared methods synthesized by the compiler, can be
1.39 - * found in section 8.9 of
1.40 - * <cite>The Java™ Language Specification</cite>.
1.41 - *
1.42 - * <p> Note that when using an enumeration type as the type of a set
1.43 - * or as the type of the keys in a map, specialized and efficient
1.44 - * {@linkplain java.util.EnumSet set} and {@linkplain
1.45 - * java.util.EnumMap map} implementations are available.
1.46 - *
1.47 - * @param <E> The enum type subclass
1.48 - * @author Josh Bloch
1.49 - * @author Neal Gafter
1.50 - * @see Class#getEnumConstants()
1.51 - * @see java.util.EnumSet
1.52 - * @see java.util.EnumMap
1.53 - * @since 1.5
1.54 - */
1.55 -public abstract class Enum<E extends Enum<E>>
1.56 - implements Comparable<E>, Serializable {
1.57 - /**
1.58 - * The name of this enum constant, as declared in the enum declaration.
1.59 - * Most programmers should use the {@link #toString} method rather than
1.60 - * accessing this field.
1.61 - */
1.62 - private final String name;
1.63 -
1.64 - /**
1.65 - * Returns the name of this enum constant, exactly as declared in its
1.66 - * enum declaration.
1.67 - *
1.68 - * <b>Most programmers should use the {@link #toString} method in
1.69 - * preference to this one, as the toString method may return
1.70 - * a more user-friendly name.</b> This method is designed primarily for
1.71 - * use in specialized situations where correctness depends on getting the
1.72 - * exact name, which will not vary from release to release.
1.73 - *
1.74 - * @return the name of this enum constant
1.75 - */
1.76 - public final String name() {
1.77 - return name;
1.78 - }
1.79 -
1.80 - /**
1.81 - * The ordinal of this enumeration constant (its position
1.82 - * in the enum declaration, where the initial constant is assigned
1.83 - * an ordinal of zero).
1.84 - *
1.85 - * Most programmers will have no use for this field. It is designed
1.86 - * for use by sophisticated enum-based data structures, such as
1.87 - * {@link java.util.EnumSet} and {@link java.util.EnumMap}.
1.88 - */
1.89 - private final int ordinal;
1.90 -
1.91 - /**
1.92 - * Returns the ordinal of this enumeration constant (its position
1.93 - * in its enum declaration, where the initial constant is assigned
1.94 - * an ordinal of zero).
1.95 - *
1.96 - * Most programmers will have no use for this method. It is
1.97 - * designed for use by sophisticated enum-based data structures, such
1.98 - * as {@link java.util.EnumSet} and {@link java.util.EnumMap}.
1.99 - *
1.100 - * @return the ordinal of this enumeration constant
1.101 - */
1.102 - public final int ordinal() {
1.103 - return ordinal;
1.104 - }
1.105 -
1.106 - /**
1.107 - * Sole constructor. Programmers cannot invoke this constructor.
1.108 - * It is for use by code emitted by the compiler in response to
1.109 - * enum type declarations.
1.110 - *
1.111 - * @param name - The name of this enum constant, which is the identifier
1.112 - * used to declare it.
1.113 - * @param ordinal - The ordinal of this enumeration constant (its position
1.114 - * in the enum declaration, where the initial constant is assigned
1.115 - * an ordinal of zero).
1.116 - */
1.117 - protected Enum(String name, int ordinal) {
1.118 - this.name = name;
1.119 - this.ordinal = ordinal;
1.120 - }
1.121 -
1.122 - /**
1.123 - * Returns the name of this enum constant, as contained in the
1.124 - * declaration. This method may be overridden, though it typically
1.125 - * isn't necessary or desirable. An enum type should override this
1.126 - * method when a more "programmer-friendly" string form exists.
1.127 - *
1.128 - * @return the name of this enum constant
1.129 - */
1.130 - public String toString() {
1.131 - return name;
1.132 - }
1.133 -
1.134 - /**
1.135 - * Returns true if the specified object is equal to this
1.136 - * enum constant.
1.137 - *
1.138 - * @param other the object to be compared for equality with this object.
1.139 - * @return true if the specified object is equal to this
1.140 - * enum constant.
1.141 - */
1.142 - public final boolean equals(Object other) {
1.143 - return this==other;
1.144 - }
1.145 -
1.146 - /**
1.147 - * Returns a hash code for this enum constant.
1.148 - *
1.149 - * @return a hash code for this enum constant.
1.150 - */
1.151 - public final int hashCode() {
1.152 - return super.hashCode();
1.153 - }
1.154 -
1.155 - /**
1.156 - * Throws CloneNotSupportedException. This guarantees that enums
1.157 - * are never cloned, which is necessary to preserve their "singleton"
1.158 - * status.
1.159 - *
1.160 - * @return (never returns)
1.161 - */
1.162 - protected final Object clone() throws CloneNotSupportedException {
1.163 - throw new CloneNotSupportedException();
1.164 - }
1.165 -
1.166 - /**
1.167 - * Compares this enum with the specified object for order. Returns a
1.168 - * negative integer, zero, or a positive integer as this object is less
1.169 - * than, equal to, or greater than the specified object.
1.170 - *
1.171 - * Enum constants are only comparable to other enum constants of the
1.172 - * same enum type. The natural order implemented by this
1.173 - * method is the order in which the constants are declared.
1.174 - */
1.175 - public final int compareTo(E o) {
1.176 - Enum other = (Enum)o;
1.177 - Enum self = this;
1.178 - if (self.getClass() != other.getClass() && // optimization
1.179 - self.getDeclaringClass() != other.getDeclaringClass())
1.180 - throw new ClassCastException();
1.181 - return self.ordinal - other.ordinal;
1.182 - }
1.183 -
1.184 - /**
1.185 - * Returns the Class object corresponding to this enum constant's
1.186 - * enum type. Two enum constants e1 and e2 are of the
1.187 - * same enum type if and only if
1.188 - * e1.getDeclaringClass() == e2.getDeclaringClass().
1.189 - * (The value returned by this method may differ from the one returned
1.190 - * by the {@link Object#getClass} method for enum constants with
1.191 - * constant-specific class bodies.)
1.192 - *
1.193 - * @return the Class object corresponding to this enum constant's
1.194 - * enum type
1.195 - */
1.196 - public final Class<E> getDeclaringClass() {
1.197 - Class clazz = getClass();
1.198 - Class zuper = clazz.getSuperclass();
1.199 - return (zuper == Enum.class) ? clazz : zuper;
1.200 - }
1.201 -
1.202 - /**
1.203 - * Returns the enum constant of the specified enum type with the
1.204 - * specified name. The name must match exactly an identifier used
1.205 - * to declare an enum constant in this type. (Extraneous whitespace
1.206 - * characters are not permitted.)
1.207 - *
1.208 - * <p>Note that for a particular enum type {@code T}, the
1.209 - * implicitly declared {@code public static T valueOf(String)}
1.210 - * method on that enum may be used instead of this method to map
1.211 - * from a name to the corresponding enum constant. All the
1.212 - * constants of an enum type can be obtained by calling the
1.213 - * implicit {@code public static T[] values()} method of that
1.214 - * type.
1.215 - *
1.216 - * @param <T> The enum type whose constant is to be returned
1.217 - * @param enumType the {@code Class} object of the enum type from which
1.218 - * to return a constant
1.219 - * @param name the name of the constant to return
1.220 - * @return the enum constant of the specified enum type with the
1.221 - * specified name
1.222 - * @throws IllegalArgumentException if the specified enum type has
1.223 - * no constant with the specified name, or the specified
1.224 - * class object does not represent an enum type
1.225 - * @throws NullPointerException if {@code enumType} or {@code name}
1.226 - * is null
1.227 - * @since 1.5
1.228 - */
1.229 - public static <T extends Enum<T>> T valueOf(Class<T> enumType,
1.230 - String name) {
1.231 - throw new UnsupportedOperationException();
1.232 -// T result = enumType.enumConstantDirectory().get(name);
1.233 -// if (result != null)
1.234 -// return result;
1.235 -// if (name == null)
1.236 -// throw new NullPointerException("Name is null");
1.237 -// throw new IllegalArgumentException(
1.238 -// "No enum constant " + enumType.getCanonicalName() + "." + name);
1.239 - }
1.240 -
1.241 - /**
1.242 - * enum classes cannot have finalize methods.
1.243 - */
1.244 - protected final void finalize() { }
1.245 -
1.246 - /**
1.247 - * prevent default deserialization
1.248 - */
1.249 -// private void readObject(ObjectInputStream in) throws IOException,
1.250 -// ClassNotFoundException {
1.251 -// throw new InvalidObjectException("can't deserialize enum");
1.252 -// }
1.253 -//
1.254 -// private void readObjectNoData() throws ObjectStreamException {
1.255 -// throw new InvalidObjectException("can't deserialize enum");
1.256 -// }
1.257 -}