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<?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\ORM\Event;

use Doctrine\ORM\EntityManagerInterface;

/**
 * Provides event arguments for the onClear event.
 *
 * @license     http://www.opensource.org/licenses/mit-license.php MIT
 * @link        www.doctrine-project.org
 * @since       2.0
 * @author      Roman Borschel <roman@code-factory.de>
 * @author      Benjamin Eberlei <kontakt@beberlei.de>
 */
class OnClearEventArgs extends \Doctrine\Common\EventArgs
{
    /**
     * @var EntityManagerInterface
     */
    private $em;

    /**
     * @var string|null
     */
    private $entityClass;

    /**
     * Constructor.
     *
     * @param EntityManagerInterface $em
     * @param string|null            $entityClass Optional entity class.
     */
    public function __construct(EntityManagerInterface $em, $entityClass = null)
    {
        $this->em          = $em;
        $this->entityClass = $entityClass;
    }

    /**
     * Retrieves associated EntityManager.
     *
     * @return \Doctrine\ORM\EntityManager
     */
    public function getEntityManager()
    {
        return $this->em;
    }

    /**
     * Name of the entity class that is cleared, or empty if all are cleared.
     *
     * @return string|null
     */
    public function getEntityClass()
    {
        return $this->entityClass;
    }

    /**
     * Checks if event clears all entities.
     *
     * @return bool
     */
    public function clearsAllEntities()
    {
        return ($this->entityClass === null);
    }
}