<?php
/*
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (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\Common\Persistence;

/**
 * Contract covering connection for a Doctrine persistence layer ManagerRegistry class to implement.
 *
 * @link   www.doctrine-project.org
 * @since  2.2
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Benjamin Eberlei <kontakt@beberlei.de>
 * @author Lukas Kahwe Smith <smith@pooteeweet.org>
 */
interface ConnectionRegistry
{
    /**
     * Gets the default connection name.
     *
     * @return string The default connection name.
     */
    public function getDefaultConnectionName();

    /**
     * Gets the named connection.
     *
     * @param string $name The connection name (null for the default one).
     *
     * @return object
     */
    public function getConnection($name = null);

    /**
     * Gets an array of all registered connections.
     *
     * @return array An array of Connection instances.
     */
    public function getConnections();

    /**
     * Gets all connection names.
     *
     * @return array An array of connection names.
     */
    public function getConnectionNames();
}