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<?php declare(strict_types=1); |
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/** |
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* This file is part of the daikon-cqrs/event-sourcing project. |
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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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namespace Daikon\EventSourcing\Aggregate; |
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use Daikon\Interop\Assertion; |
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use Daikon\Interop\MakeEmptyInterface; |
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use Daikon\ValueObject\ValueObjectInterface; |
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final class AggregateRevision implements MakeEmptyInterface, ValueObjectInterface |
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{ |
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private const INITIAL = 1; |
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private const NONE = 0; |
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private int $revision; |
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/** @param int|string $revision */ |
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public static function fromNative($revision): self |
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{ |
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Assertion::integerish($revision); |
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return new self((int)$revision); |
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} |
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public static function makeEmpty(): self |
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{ |
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return new self(self::NONE); |
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} |
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public function toNative(): int |
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{ |
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return $this->revision; |
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} |
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public function increment(): self |
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{ |
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$copy = clone $this; |
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$copy->revision++; |
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return $copy; |
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} |
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/** @param self $comparator */ |
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public function equals($comparator): bool |
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{ |
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Assertion::isInstanceOf($comparator, self::class); |
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return $this->toNative() === $comparator->toNative(); |
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} |
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public function isInitial(): bool |
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{ |
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return $this->revision === self::INITIAL; |
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} |
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public function isEmpty(): bool |
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{ |
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return $this->revision === self::NONE; |
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} |
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public function isWithinRange(self $from, self $to): bool |
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{ |
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return $this->isGreaterThanOrEqual($from) && $this->isLessThanOrEqual($to); |
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} |
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public function isGreaterThanOrEqual(self $revision): bool |
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{ |
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return $this->revision >= $revision->toNative(); |
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} |
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public function isGreaterThan(self $revision): bool |
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{ |
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return $this->revision > $revision->toNative(); |
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} |
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public function isLessThanOrEqual(self $revision): bool |
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{ |
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return $this->revision <= $revision->toNative(); |
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} |
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public function isLessThan(self $revision): bool |
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{ |
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return $this->revision < $revision->toNative(); |
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} |
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public function __toString(): string |
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{ |
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return (string)$this->revision; |
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} |
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private function __construct(int $revision) |
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{ |
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$this->revision = $revision; |
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} |
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} |
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daikon-cqrs /
event-sourcing
