Edit File: TimestampLastCombCodec.php
<?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 */ declare(strict_types=1); namespace Ramsey\Uuid\Codec; /** * TimestampLastCombCodec encodes and decodes COMBs, with the timestamp as the * last 48 bits * * The CombGenerator when used with the StringCodec (and, by proxy, the * TimestampLastCombCodec) adds the timestamp to the last 48 bits of the COMB. * The TimestampLastCombCodec is provided for the sake of consistency. In * practice, it is identical to the standard StringCodec but, it may be used * with the CombGenerator for additional context when reading code. * * Consider the following code. By default, the codec used by UuidFactory is the * StringCodec, but here, we explicitly set the TimestampLastCombCodec. It is * redundant, but it is clear that we intend this COMB to be generated with the * timestamp appearing at the end. * * ``` php * $factory = new UuidFactory(); * * $factory->setCodec(new TimestampLastCombCodec($factory->getUuidBuilder())); * * $factory->setRandomGenerator(new CombGenerator( * $factory->getRandomGenerator(), * $factory->getNumberConverter() * )); * * $timestampLastComb = $factory->uuid4(); * ``` * * @link https://www.informit.com/articles/printerfriendly/25862 The Cost of GUIDs as Primary Keys * * @psalm-immutable */ class TimestampLastCombCodec extends StringCodec { }
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