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<?php
namespace EventSauce\EventSourcing;
final class Message
{
/**
* @var Event
*/
private $event;
* @var array
private $headers;
public function __construct(Event $event, array $metadata = [])
$this->event = $event;
$this->headers = $metadata;
}
public function withHeader(string $key, $value): Message
$clone = clone $this;
$clone->headers[$key] = $value;
return $clone;
public function withHeaders(array $headers): Message
$clone->headers = $headers + $clone->headers;
public function aggregateRootId(): ?AggregateRootId
return $this->headers[Header::AGGREGATE_ROOT_ID] ?? null;
public function header(string $key)
return $this->headers[$key] ?? null;
public function headers(): array
return $this->headers;
public function event(): Event
return $this->event;
EventSaucePHP /
EventSauce
