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