Determines if a plugin instance exists.

Parameters

string $instance_id: The ID of the plugin instance to check.

Return value

bool TRUE if the plugin instance exists, FALSE otherwise.

File

core/lib/Drupal/Component/Plugin/LazyPluginCollection.php, line 68

Class

LazyPluginCollection

Defines an object which stores multiple plugin instances to lazy load them.

Namespace

Drupal\Component\Plugin

Code

public function has($instance_id) {
  return isset($this->pluginInstances[$instance_id]) || isset($this->instanceIds[$instance_id]);
}

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