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<?php
/**
* @copyright Copyright (c) 2016 Morris Jobke <hey@morrisjobke.de>
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Morris Jobke <hey@morrisjobke.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 ICheck
*
* @package OCP\WorkflowEngine
* @since 9.1
*/
interface ICheck {
/**
* @param string $operator
* @param string $value
* @return bool
* @since 9.1
*/
public function executeCheck($operator, $value);
/**
* @param string $operator
* @param string $value
* @throws \UnexpectedValueException
* @since 9.1
*/
public function validateCheck($operator, $value);
/**
* returns a list of Entities the checker supports. The values must match
* the class name of the entity.
*
* An empty result means the check is universally available.
*
* @since 18.0.0
*/
public function supportedEntities(): array;
/**
* returns whether the operation can be used in the requested scope.
*
* Scope IDs are defined as constants in OCP\WorkflowEngine\IManager. At
* time of writing these are SCOPE_ADMIN and SCOPE_USER.
*
* For possibly unknown future scopes the recommended behaviour is: if
* user scope is permitted, the default behaviour should return `true`,
* otherwise `false`.
*
* @since 18.0.0
*/
public function isAvailableForScope(int $scope): bool;
/**
* Equips the check with a subject fitting the Entity. For instance, an
* entity of File will receive an instance of OCP\Files\Node, or a comment
* entity might get an IComment.
*
* The implementing check must be aware of the incoming type.
*
* If an unsupported subject is passed the implementation MAY throw an
* \UnexpectedValueException.
*
* When an implementation does not depend on a subject being passed to it,
* for example RequestTime, the implemented method SHOULD just pass, without
* any further operation.
*
* @param IEntity $entity
* @param mixed $subject
* @throws \UnexpectedValueException
*/
public function setEntitySubject(IEntity $entity, $subject): void;
}
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