ConfigRenameEvent.php

<?php

namespace Drupal\Core\Config;


/**
 * Configuration event fired when renaming a configuration object.
 */
class ConfigRenameEvent extends ConfigCrudEvent {
    
    /**
     * The old configuration object name.
     *
     * @var string
     */
    protected $oldName;
    
    /**
     * Constructs the config rename event.
     *
     * @param \Drupal\Core\Config\StorableConfigBase $config
     *   The configuration that has been renamed.
     * @param string $old_name
     *   The old configuration object name.
     */
    public function __construct(StorableConfigBase $config, $old_name) {
        $this->config = $config;
        $this->oldName = $old_name;
    }
    
    /**
     * Gets the old configuration object name.
     *
     * @return string
     *   The old configuration object name.
     */
    public function getOldName() {
        return $this->oldName;
    }

}