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<?php |
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/** |
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* Event Sourcing implementation |
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* |
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* @author Maksim Masiukevich <[email protected]> |
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* @license MIT |
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* @license https://opensource.org/licenses/MIT |
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*/ |
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declare(strict_types = 1); |
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namespace ServiceBus\EventSourcing\Indexes; |
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use ServiceBus\EventSourcing\Indexes\Exceptions\IndexNameCantBeEmpty; |
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use ServiceBus\EventSourcing\Indexes\Exceptions\ValueKeyCantBeEmpty; |
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/** |
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* The key for the value stored in the index |
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* |
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* @property-read string $indexName |
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* @property-read string $valueKey |
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*/ |
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final class IndexKey |
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{ |
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/** |
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* @var string |
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*/ |
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public $indexName; |
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/** |
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* @var string |
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*/ |
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public $valueKey; |
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/** |
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* @param string $indexName |
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* @param string $valueKey |
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* |
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* @return self |
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* |
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* @throws \ServiceBus\EventSourcing\Indexes\Exceptions\IndexNameCantBeEmpty |
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* @throws \ServiceBus\EventSourcing\Indexes\Exceptions\ValueKeyCantBeEmpty |
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*/ |
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public static function create(string $indexName, string $valueKey): self |
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{ |
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self::assertIndexNameIsNotEmpty($indexName); |
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self::assertValueKeyIsNotEmpty($valueKey); |
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return new self($indexName, $valueKey); |
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} |
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/** |
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* @param string $indexName |
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* |
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* @return void |
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* |
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* @throws \ServiceBus\EventSourcing\Indexes\Exceptions\IndexNameCantBeEmpty |
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*/ |
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private static function assertIndexNameIsNotEmpty(string $indexName): void |
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{ |
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if('' === $indexName) |
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{ |
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throw new IndexNameCantBeEmpty('Index name can\'t be empty'); |
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} |
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} |
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/** |
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* @param string $valueKey |
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* |
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* @return void |
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* |
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* @throws \ServiceBus\EventSourcing\Indexes\Exceptions\ValueKeyCantBeEmpty |
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*/ |
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private static function assertValueKeyIsNotEmpty(string $valueKey): void |
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{ |
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if('' === $valueKey) |
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{ |
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throw new ValueKeyCantBeEmpty('Value key can\'t be empty'); |
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} |
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} |
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/** |
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* @param string $indexName |
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* @param string $valueKey |
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*/ |
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private function __construct(string $indexName, string $valueKey) |
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{ |
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$this->indexName = $indexName; |
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$this->valueKey = $valueKey; |
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} |
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} |
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php-service-bus /
event-sourcing
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