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<?php declare(strict_types=1);
/**
* This file is part of the daikon-cqrs/read-model project.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Daikon\ReadModel\Projection;
use Daikon\EventSourcing\Aggregate\Event\DomainEventInterface;
use Daikon\Interop\RuntimeException;
use ReflectionClass;
trait EventHandlerTrait
{
/** @return static */
public function applyEvent(DomainEventInterface $event): self
$projection = clone $this;
return $projection->invokeEventHandler($event);
}
protected function invokeEventHandler(DomainEventInterface $event): self
$handlerName = (new ReflectionClass($event))->getShortName();
$handlerMethod = 'when'.ucfirst($handlerName);
$handler = [$this, $handlerMethod];
if (!is_callable($handler)) {
throw new RuntimeException(
sprintf("Handler '%s' is not callable on '%s'.", $handlerMethod, static::class)
);
return $handler($event);
daikon-cqrs /
read-model
