<?php declare(strict_types=1);
/**
 * Part of Windwalker project.
 *
 * @copyright  Copyright (C) 2019 LYRASOFT.
 * @license    LGPL-2.0-or-later
 */

namespace Windwalker\Renderer;

/**
 * The AbstractEngineRenderer class.
 *
 * @since  2.0
 */
abstract class AbstractEngineRenderer extends AbstractRenderer
{
    /**
     * Property engine.
     *
     * @var  object
     */
    protected $engine = null;

    /**
     * Method to get property Engine
     *
     * @param   boolean $new
     *
     * @return  object
     */
    abstract public function getEngine($new = false);

    /**
     * Method to set property engine
     *
     * @param   object $engine
     *
     * @return  static  Return self to support chaining.
     */
    abstract public function setEngine($engine);
}