<?php
declare(strict_types=1);
/**
 * @copyright Copyright (c) 2019 Arthur Schiwon <blizzz@arthur-schiwon.de>
 *
 * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCP\WorkflowEngine;

/**
 * Interface ISpecificOperator
 *
 * This interface represents an operator that is designed to work with exactly
 * one entity type.
 *
 * In almost all of the cases it is not necessary to have this limitation,
 * because the action is not connected to the event. This mechanism suits
 * special cases.
 *
 * @package OCP\WorkflowEngine
 * @since 18.0.0
 */
interface ISpecificOperator extends IOperator {

	/**
	 * returns the id of the entity the operator is designed for
	 *
	 * Example: 'WorkflowEngine_Entity_File'
	 *
	 * @since 18.0.0
	 */
	public function getEntityId():string;
}