vendor/doctrine/common/lib/Doctrine/Common/Persistence/Proxy.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\Common\Persistence;

/**
 * Interface for proxy classes.
 *
 * @author Roman Borschel <roman@code-factory.org>
 * @since  2.2
 */
interface Proxy
{
    /**
     * Marker for Proxy class names.
     *
     * @var string
     */
    const MARKER = '__CG__';

    /**
     * Length of the proxy marker.
     *
     * @var integer
     */
    const MARKER_LENGTH = 6;

    /**
     * Initializes this proxy if its not yet initialized.
     *
     * Acts as a no-op if already initialized.
     *
     * @return void
     */
    public function __load();

    /**
     * Returns whether this proxy is initialized or not.
     *
     * @return bool
     */
    public function __isInitialized();
}