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<?php
/**
* This file is part of the ramsey/uuid library
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
* @license http://opensource.org/licenses/MIT MIT
* @link https://benramsey.com/projects/ramsey-uuid/ Documentation
* @link https://packagist.org/packages/ramsey/uuid Packagist
* @link https://github.com/ramsey/uuid GitHub
*/
namespace Ramsey\Uuid;
use Ramsey\Uuid\Converter\NumberConverterInterface;
use Ramsey\Uuid\Exception\UnsupportedOperationException;
/**
* UuidInterface defines common functionality for all universally unique
* identifiers (UUIDs)
*/
interface UuidInterface extends \JsonSerializable, \Serializable
{
/**
* Compares this UUID to the specified UUID.
*
* 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.
*
* * Q. What's the value of being able to sort UUIDs?
* * A. Use them as keys in a B-Tree or similar mapping.
*
* @param UuidInterface $other UUID to which this UUID is compared
* @return int -1, 0 or 1 as this UUID is less than, equal to, or greater than `$uuid`
*/
public function compareTo(UuidInterface $other);
/**
* Compares this object to the specified object.
*
* The result is true if and only if the argument is not null, is a UUID
* object, has the same variant, and contains the same value, bit for bit,
* as this UUID.
*
* @param object $other
* @return bool True if `$other` is equal to this UUID
*/
public function equals($other);
/**
* Returns the UUID as a 16-byte string (containing the six integer fields
* in big-endian byte order).
*
* @return string
*/
public function getBytes();
/**
* Returns the number converter to use for converting hex values to/from integers.
*
* @return NumberConverterInterface
*/
public function getNumberConverter();
/**
* Returns the hexadecimal value of the UUID.
*
* @return string
*/
public function getHex();
/**
* Returns an array of the fields of this UUID, with keys named according
* to the RFC 4122 names for the fields.
*
* * **time_low**: The low field of the timestamp, an unsigned 32-bit integer
* * **time_mid**: The middle field of the timestamp, an unsigned 16-bit integer
* * **time_hi_and_version**: The high field of the timestamp multiplexed with
* the version number, an unsigned 16-bit integer
* * **clock_seq_hi_and_reserved**: The high field of the clock sequence
* multiplexed with the variant, an unsigned 8-bit integer
* * **clock_seq_low**: The low field of the clock sequence, an unsigned
* 8-bit integer
* * **node**: The spatially unique node identifier, an unsigned 48-bit
* integer
*
* @return array The UUID fields represented as hexadecimal values
*/
public function getFieldsHex();
/**
* Returns the high field of the clock sequence multiplexed with the variant
* (bits 65-72 of the UUID).
*
* @return string Hexadecimal value of clock_seq_hi_and_reserved
*/
public function getClockSeqHiAndReservedHex();
/**
* Returns the low field of the clock sequence (bits 73-80 of the UUID).
*
* @return string Hexadecimal value of clock_seq_low
*/
public function getClockSeqLowHex();
/**
* Returns the clock sequence value associated with this UUID.
*
* @return string Hexadecimal value of clock sequence
*/
public function getClockSequenceHex();
/**
* Returns a PHP `DateTime` object representing the timestamp associated
* with this UUID.
*
* The timestamp 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 \DateTime A PHP DateTime representation of the date
* @throws UnsupportedOperationException If this UUID is not a version 1 UUID
* @throws \Ramsey\Uuid\Exception\UnsatisfiedDependencyException if called in a 32-bit system and
* `Moontoast\Math\BigNumber` is not present
*/
public function getDateTime();
/**
* Returns the integer value of the UUID, converted to an appropriate number
* representation.
*
* @return mixed Converted representation of the unsigned 128-bit integer value
* @throws \Ramsey\Uuid\Exception\UnsatisfiedDependencyException if `Moontoast\Math\BigNumber` is not present
*/
public function getInteger();
/**
* Returns the least significant 64 bits of this UUID's 128 bit value.
*
* @return string Hexadecimal value of least significant bits
*/
public function getLeastSignificantBitsHex();
/**
* Returns the most significant 64 bits of this UUID's 128 bit value.
*
* @return string Hexadecimal value of most significant bits
*/
public function getMostSignificantBitsHex();
/**
* Returns the node value associated with this UUID
*
* For UUID version 1, the node field consists of an IEEE 802 MAC
* address, usually the host address. For systems with multiple IEEE
* 802 addresses, any available one can be used. The lowest addressed
* octet (octet number 10) contains the global/local bit and the
* unicast/multicast bit, and is the first octet of the address
* transmitted on an 802.3 LAN.
*
* For systems with no IEEE address, a randomly or pseudo-randomly
* generated value may be used; see RFC 4122, Section 4.5. The
* multicast bit must be set in such addresses, in order that they
* will never conflict with addresses obtained from network cards.
*
* For UUID version 3 or 5, the node field is a 48-bit value constructed
* from a name as described in RFC 4122, Section 4.3.
*
* For UUID version 4, the node field is a randomly or pseudo-randomly
* generated 48-bit value as described in RFC 4122, Section 4.4.
*
* @return string Hexadecimal value of node
* @link http://tools.ietf.org/html/rfc4122#section-4.1.6
*/
public function getNodeHex();
/**
* Returns the high field of the timestamp multiplexed with the version
* number (bits 49-64 of the UUID).
*
* @return string Hexadecimal value of time_hi_and_version
*/
public function getTimeHiAndVersionHex();
/**
* Returns the low field of the timestamp (the first 32 bits of the UUID).
*
* @return string Hexadecimal value of time_low
*/
public function getTimeLowHex();
/**
* Returns the middle field of the timestamp (bits 33-48 of the UUID).
*
* @return string Hexadecimal value of time_mid
*/
public function getTimeMidHex();
/**
* Returns the timestamp value associated with this UUID.
*
* The 60 bit timestamp value is constructed from the time_low,
* time_mid, and time_hi fields of this UUID. The resulting
* timestamp is measured in 100-nanosecond units since midnight,
* October 15, 1582 UTC.
*
* The timestamp 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 string Hexadecimal value of the timestamp
* @throws UnsupportedOperationException If this UUID is not a version 1 UUID
* @link http://tools.ietf.org/html/rfc4122#section-4.1.4
*/
public function getTimestampHex();
/**
* Returns the string representation of the UUID as a URN.
*
* @return string
* @link http://en.wikipedia.org/wiki/Uniform_Resource_Name
*/
public function getUrn();
/**
* Returns the variant number associated with this UUID.
*
* The variant number describes the layout of the UUID. The variant
* number has the following meaning:
*
* * 0 - Reserved for NCS backward compatibility
* * 2 - The RFC 4122 variant (used by this class)
* * 6 - Reserved, Microsoft Corporation backward compatibility
* * 7 - Reserved for future definition
*
* @return int
* @link http://tools.ietf.org/html/rfc4122#section-4.1.1
*/
public function getVariant();
/**
* Returns the version number associated with this UUID.
*
* The version number describes how this UUID was generated and has the
* following meaning:
*
* * 1 - Time-based UUID
* * 2 - DCE security UUID
* * 3 - Name-based UUID hashed with MD5
* * 4 - Randomly generated UUID
* * 5 - Name-based UUID hashed with SHA-1
*
* Returns null if this UUID is not an RFC 4122 variant, since version
* is only meaningful for this variant.
*
* @return int|null
* @link http://tools.ietf.org/html/rfc4122#section-4.1.3
*/
public function getVersion();
/**
* Converts this UUID into a string representation.
*
* @return string
*/
public function toString();
}