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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
use Wikimedia\Rdbms\IDatabase;
use Wikimedia\Rdbms\IReadableDatabase;
/**
* A foreign repo that allows for direct access to the foreign MW database.
*
* Extension file repos should implement this if they support making DB queries
* against the foreign repos. Media handler extensions (e.g. TimedMediaHandler)
* can look for this interface if they need to look up additional information.
*
* An extension will typically implement this by extending the LocalRepo class
* and overriding these methods. If the foreign repo is meant to be non-writable,
* the extension should additionally override LocalRepo::assertWritableRepo() and
* throw an exception -- see ForeignDBRepo and ForeignDBViaLBRepo for examples.
*
* @since 1.41
* @ingroup FileRepo
* @stable to implement
*/
interface IForeignRepoWithDB {
/**
* Get a connection to the primary DB for the foreign repo.
* @return IDatabase
* @since 1.41
*/
public function getPrimaryDB();
/**
* Get a connection to the replica DB for the foreign repo.
* @return IReadableDatabase
* @since 1.41
*/
public function getReplicaDB();
}
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