D8 Plugin types (plugin managers)
The plugin manager is the central controlling class that defines how the plugins of a particular type will be discovered and instantiated. This class is called directly in any module wishing to invoke a plugin type.
This documentation will require an understanding of PSR-0.
Defining the Plugin Manager
There are only two requirements for defining a new plugin manager:
- You must define a discovery method.
- You must define a factory.
Everything else within the plugin system is situational and based upon your use case. For this plugin type, we will use the hook discovery and the default factory.
<?php
namespace Drupal\components\Plugin\Manager;
use Drupal\Component\Plugin\PluginManagerBase;
use Drupal\Core\Plugin\Discovery\HookDiscovery;
use Drupal\Component\Plugin\Factory\DefaultFactory;
/**
* Defines the plugin manager for Components plugins.
*/
class ComponentsPluginManagerBase extends PluginManagerBase {
/**
* Constructs a new Components plugin manager object.
*/
public function __construct() {
$this->discovery = new HookDiscovery('component_info');
$this->factory = new DefaultFactory($this);
}
}
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