Overriding the Default Service
Fetching a default service from the container can be modified by adding your own service with a similar interface to the user container. You need to create a new service and return it from the 'getSingleton' method of the App\Bootstrap\ContainerFactory class before selecting from the default services. In the HLEB2 framework, each built-in service uses two identical interfaces (for different naming options), and you must return your own service as a singleton for the interface ending with 'Interface'. For example, for the caching service, it would be 'Hleb\Reference\CacheInterface'.
// File /app/Bootstrap/ContainerFactory.php
namespace App\Bootstrap;
use Hleb\Constructor\Containers\BaseContainerFactory;
use Hleb\Reference\CacheInterface;
final class ContainerFactory extends BaseContainerFactory
{
public static function getSingleton(string $id): mixed
{
self::has($id) or self::$singletons[$id] = match ($id) {
// Adding a replacement for a service.
CacheInterface::class => new OtherCacheService(),
// ... //
default => null
};
return self::$singletons[$id];
}
public static function rollback(): void
{
// ... //
}
}
The example shows how to replace the default caching service with your own. Here, it could be caching with database storage instead of file-based (default).
Similarly, you can "remove" a default service from the container by overriding it with a NULL value. But first, you must ensure that the service is not used in either the framework's own code or the application's code.
