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* Copyright (c) 2003, 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
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package java.util;
import java.security.*;
/**
* A class that represents an immutable universally unique identifier (UUID).
* A UUID represents a 128-bit value.
*
* <p> There exist different variants of these global identifiers. The methods
* of this class are for manipulating the Leach-Salz variant, although the
* constructors allow the creation of any variant of UUID (described below).
*
* <p> The layout of a variant 2 (Leach-Salz) UUID is as follows:
*
* The most significant long consists of the following unsigned fields:
* <pre>
* 0xFFFFFFFF00000000 time_low
* 0x00000000FFFF0000 time_mid
* 0x000000000000F000 version
* 0x0000000000000FFF time_hi
* </pre>
* The least significant long consists of the following unsigned fields:
* <pre>
* 0xC000000000000000 variant
* 0x3FFF000000000000 clock_seq
* 0x0000FFFFFFFFFFFF node
* </pre>
*
* <p> The variant field contains a value which identifies the layout of the
* {@code UUID}. The bit layout described above is valid only for a {@code
* UUID} with a variant value of 2, which indicates the Leach-Salz variant.
*
* <p> The version field holds a value that describes the type of this {@code
* UUID}. There are four different basic types of UUIDs: time-based, DCE
* security, name-based, and randomly generated UUIDs. These types have a
* version value of 1, 2, 3 and 4, respectively.
*
* <p> For more information including algorithms used to create {@code UUID}s,
* see <a href="http://www.ietf.org/rfc/rfc4122.txt"> <i>RFC&nbsp;4122: A
* Universally Unique IDentifier (UUID) URN Namespace</i></a>, section 4.2
* &quot;Algorithms for Creating a Time-Based UUID&quot;.
*
* @since 1.5
*/
@SuppressWarnings({"unchecked", "deprecation", "all"})
public final class UUID implements java.io.Serializable, java.lang.Comparable<java.util.UUID> {
/**
* Constructs a new {@code UUID} using the specified data. {@code
* mostSigBits} is used for the most significant 64 bits of the {@code
* UUID} and {@code leastSigBits} becomes the least significant 64 bits of
* the {@code UUID}.
*
* @param mostSigBits
* The most significant bits of the {@code UUID}
*
* @param leastSigBits
* The least significant bits of the {@code UUID}
*/
public UUID(long mostSigBits, long leastSigBits) { throw new RuntimeException("Stub!"); }
/**
* Static factory to retrieve a type 4 (pseudo randomly generated) UUID.
*
* The {@code UUID} is generated using a cryptographically strong pseudo
* random number generator.
*
* @return A randomly generated {@code UUID}
*/
public static java.util.UUID randomUUID() { throw new RuntimeException("Stub!"); }
/**
* Static factory to retrieve a type 3 (name based) {@code UUID} based on
* the specified byte array.
*
* @param name
* A byte array to be used to construct a {@code UUID}
*
* @return A {@code UUID} generated from the specified array
*/
public static java.util.UUID nameUUIDFromBytes(byte[] name) { throw new RuntimeException("Stub!"); }
/**
* Creates a {@code UUID} from the string standard representation as
* described in the {@link #toString} method.
*
* @param name
* A string that specifies a {@code UUID}
*
* @return A {@code UUID} with the specified value
*
* @throws java.lang.IllegalArgumentException
* If name does not conform to the string representation as
* described in {@link #toString}
*
*/
public static java.util.UUID fromString(java.lang.String name) { throw new RuntimeException("Stub!"); }
/**
* Returns the least significant 64 bits of this UUID's 128 bit value.
*
* @return The least significant 64 bits of this UUID's 128 bit value
*/
public long getLeastSignificantBits() { throw new RuntimeException("Stub!"); }
/**
* Returns the most significant 64 bits of this UUID's 128 bit value.
*
* @return The most significant 64 bits of this UUID's 128 bit value
*/
public long getMostSignificantBits() { throw new RuntimeException("Stub!"); }
/**
* The version number associated with this {@code UUID}. The version
* number describes how this {@code UUID} was generated.
*
* The version number has the following meaning:
* <ul>
* <li>1 Time-based UUID
* <li>2 DCE security UUID
* <li>3 Name-based UUID
* <li>4 Randomly generated UUID
* </ul>
*
* @return The version number of this {@code UUID}
*/
public int version() { throw new RuntimeException("Stub!"); }
/**
* The variant number associated with this {@code UUID}. The variant
* number describes the layout of the {@code UUID}.
*
* The variant number has the following meaning:
* <ul>
* <li>0 Reserved for NCS backward compatibility
* <li>2 <a href="http://www.ietf.org/rfc/rfc4122.txt">IETF&nbsp;RFC&nbsp;4122</a>
* (Leach-Salz), used by this class
* <li>6 Reserved, Microsoft Corporation backward compatibility
* <li>7 Reserved for future definition
* </ul>
*
* @return The variant number of this {@code UUID}
*/
public int variant() { throw new RuntimeException("Stub!"); }
/**
* The timestamp value associated with this UUID.
*
* <p> The 60 bit timestamp value is constructed from the time_low,
* time_mid, and time_hi fields of this {@code UUID}. The resulting
* timestamp is measured in 100-nanosecond units since midnight,
* October 15, 1582 UTC.
*
* <p> The timestamp value is only meaningful in a time-based UUID, which
* has version type 1. If this {@code UUID} is not a time-based UUID then
* this method throws UnsupportedOperationException.
*
* @throws java.lang.UnsupportedOperationException
* If this UUID is not a version 1 UUID
* @return The timestamp of this {@code UUID}.
*/
public long timestamp() { throw new RuntimeException("Stub!"); }
/**
* The clock sequence value associated with this UUID.
*
* <p> The 14 bit clock sequence value is constructed from the clock
* sequence field of this UUID. The clock sequence field is used to
* guarantee temporal uniqueness in a time-based UUID.
*
* <p> The {@code clockSequence} value is only meaningful in a time-based
* UUID, which has version type 1. If this UUID is not a time-based UUID
* then this method throws UnsupportedOperationException.
*
* @return The clock sequence of this {@code UUID}
*
* @throws java.lang.UnsupportedOperationException
* If this UUID is not a version 1 UUID
*/
public int clockSequence() { throw new RuntimeException("Stub!"); }
/**
* The node value associated with this UUID.
*
* <p> The 48 bit node value is constructed from the node field of this
* UUID. This field is intended to hold the IEEE 802 address of the machine
* that generated this UUID to guarantee spatial uniqueness.
*
* <p> The node value is only meaningful in a time-based UUID, which has
* version type 1. If this UUID is not a time-based UUID then this method
* throws UnsupportedOperationException.
*
* @return The node value of this {@code UUID}
*
* @throws java.lang.UnsupportedOperationException
* If this UUID is not a version 1 UUID
*/
public long node() { throw new RuntimeException("Stub!"); }
/**
* Returns a {@code String} object representing this {@code UUID}.
*
* <p> The UUID string representation is as described by this BNF:
* <blockquote><pre>
* {@code
* UUID = <time_low> "-" <time_mid> "-"
* <time_high_and_version> "-"
* <variant_and_sequence> "-"
* <node>
* time_low = 4*<hexOctet>
* time_mid = 2*<hexOctet>
* time_high_and_version = 2*<hexOctet>
* variant_and_sequence = 2*<hexOctet>
* node = 6*<hexOctet>
* hexOctet = <hexDigit><hexDigit>
* hexDigit =
* "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"
* | "a" | "b" | "c" | "d" | "e" | "f"
* | "A" | "B" | "C" | "D" | "E" | "F"
* }</pre></blockquote>
*
* @return A string representation of this {@code UUID}
*/
public java.lang.String toString() { throw new RuntimeException("Stub!"); }
/**
* Returns a hash code for this {@code UUID}.
*
* @return A hash code value for this {@code UUID}
*/
public int hashCode() { throw new RuntimeException("Stub!"); }
/**
* Compares this object to the specified object. The result is {@code
* true} if and only if the argument is not {@code null}, is a {@code UUID}
* object, has the same variant, and contains the same value, bit for bit,
* as this {@code UUID}.
*
* @param obj
* The object to be compared
*
* @return {@code true} if the objects are the same; {@code false}
* otherwise
*/
public boolean equals(java.lang.Object obj) { throw new RuntimeException("Stub!"); }
/**
* Compares this UUID with the specified UUID.
*
* <p> The first of two UUIDs is greater than the second if the most
* significant field in which the UUIDs differ is greater for the first
* UUID.
*
* @param val
* {@code UUID} to which this {@code UUID} is to be compared
*
* @return -1, 0 or 1 as this {@code UUID} is less than, equal to, or
* greater than {@code val}
*
*/
public int compareTo(java.util.UUID val) { throw new RuntimeException("Stub!"); }
}