vendor/doctrine/orm/lib/Doctrine/ORM/Events.php

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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;

/**
 * Container for all ORM events.
 *
 * This class cannot be instantiated.
 *
 * @author Roman Borschel <roman@code-factory.org>
 * @since 2.0
 */
final class Events
{
    /**
     * Private constructor. This class is not meant to be instantiated.
     */
    private function __construct()
    {
    }

    /**
     * The preRemove event occurs for a given entity before the respective
     * EntityManager remove operation for that entity is executed.
     *
     * This is an entity lifecycle event.
     *
     * @var string
     */
    const preRemove = 'preRemove';

    /**
     * The postRemove event occurs for an entity after the entity has
     * been deleted. It will be invoked after the database delete operations.
     *
     * This is an entity lifecycle event.
     *
     * @var string
     */
    const postRemove = 'postRemove';

    /**
     * The prePersist event occurs for a given entity before the respective