ShardChoser.php

<?php
/*
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the MIT license. For more information, see
 * <http://www.doctrine-project.org>.
 */

namespace Doctrine\DBAL\Sharding\ShardChoser;

use Doctrine\DBAL\Sharding\PoolingShardConnection;

/**
 * Given a distribution value this shard-choser strategy will pick the shard to
 * connect to for retrieving rows with the distribution value.
 *
 * @author Benjamin Eberlei <kontakt@beberlei.de>
 */
interface ShardChoser
{
    /**
     * Pick a shard for the given distribution value
     *
     * @param string $distributionValue
     * @param PoolingShardConnection $conn
     * @return int
     */
    function pickShard($distributionValue, PoolingShardConnection $conn);
}