ModifiedExpiryPolicy.php

<?php

declare(strict_types = 1);

/* 
 * 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\Cache\Expiry;

/**
 * An ExpiryPolicy based on the last time cache entry was updated, contemplating creation and modification of entry.
 *
 * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
 *
 * @package Doctrine\Cache\Expiry
 */
class ModifiedExpiryPolicy implements ExpiryPolicy
{
    /**
     * @var \Doctrine\Cache\Expiry\Duration
     */
    private $expiryDuration;

    /**
     * Constructor.
     *
     * @param \Doctrine\Cache\Expiry\Duration $expiryDuration
     */
    public function __construct(Duration $expiryDuration)
    {
        $this->expiryDuration = $expiryDuration;
    }

    /**
     * {@inheritdoc}
     */
    public function getExpiryForCreation() : Duration
    {
        return $this->expiryDuration;
    }

    /**
     * {@inheritdoc}
     */
    public function getExpiryForAccess() : Duration
    {
        return null;
    }

    /**
     * {@inheritdoc}
     */
    public function getExpiryForUpdate() : Duration
    {
        return $this->expiryDuration;
    }
}