75 lines
2.2 KiB
PHP
75 lines
2.2 KiB
PHP
<?php
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/*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the MIT license. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\ORM\Cache;
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/**
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* @since 2.5
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* @author Fabio B. Silva <fabio.bat.silva@gmail.com>
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*/
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class TimestampQueryCacheValidator implements QueryCacheValidator
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{
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/**
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* @var TimestampRegion
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*/
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private $timestampRegion;
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/**
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* @param TimestampRegion $timestampRegion
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*/
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public function __construct(TimestampRegion $timestampRegion)
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{
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$this->timestampRegion = $timestampRegion;
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}
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/**
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* {@inheritdoc}
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*/
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public function isValid(QueryCacheKey $key, QueryCacheEntry $entry)
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{
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if ($this->regionUpdated($key, $entry)) {
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return false;
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}
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if ($key->lifetime == 0) {
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return true;
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}
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return ($entry->time + $key->lifetime) > microtime(true);
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}
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/**
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* @param QueryCacheKey $key
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* @param QueryCacheEntry $entry
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*
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* @return bool
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*/
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private function regionUpdated(QueryCacheKey $key, QueryCacheEntry $entry)
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{
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if ($key->timestampKey === null) {
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return false;
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}
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$timestamp = $this->timestampRegion->get($key->timestampKey);
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return $timestamp && $timestamp->time > $entry->time;
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}
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}
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