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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\DBAL\Cache;
use Doctrine\Common\Cache\Cache;
/**
* Query Cache Profile handles the data relevant for query caching.
*
* It is a value object, setter methods return NEW instances.
*
* @author Benjamin Eberlei <kontakt@beberlei.de>
*/
class QueryCacheProfile
{
/**
* @var \Doctrine\Common\Cache\Cache|null
*/
private $resultCacheDriver;
/**
* @var integer
*/
private $lifetime = 0;
/**
* @var string|null
*/
private $cacheKey;
/**
* @param integer $lifetime
* @param string|null $cacheKey
* @param \Doctrine\Common\Cache\Cache|null $resultCache
*/
public function __construct($lifetime = 0, $cacheKey = null, Cache $resultCache = null)
{
$this->lifetime = $lifetime;
$this->cacheKey = $cacheKey;
$this->resultCacheDriver = $resultCache;
}
/**
* @return \Doctrine\Common\Cache\Cache|null
*/
public function getResultCacheDriver()
{
return $this->resultCacheDriver;
}
/**
* @return integer
*/
public function getLifetime()
{
return $this->lifetime;
}
/**
* @return string
*
* @throws \Doctrine\DBAL\Cache\CacheException
*/
public function getCacheKey()
{
if ($this->cacheKey === null) {
throw CacheException::noCacheKey();
}
return $this->cacheKey;
}
/**
* Generates the real cache key from query, params and types.
*
* @param string $query
* @param array $params
* @param array $types
*
* @return array
*/
public function generateCacheKeys($query, $params, $types)
{
$realCacheKey = $query . "-" . serialize($params) . "-" . serialize($types);
// should the key be automatically generated using the inputs or is the cache key set?
if ($this->cacheKey === null) {
$cacheKey = sha1($realCacheKey);
} else {
$cacheKey = $this->cacheKey;
}
return array($cacheKey, $realCacheKey);
}
/**
* @param \Doctrine\Common\Cache\Cache $cache
*
* @return \Doctrine\DBAL\Cache\QueryCacheProfile
*/
public function setResultCacheDriver(Cache $cache)
{
return new QueryCacheProfile($this->lifetime, $this->cacheKey, $cache);
}
/**
* @param string|null $cacheKey
*
* @return \Doctrine\DBAL\Cache\QueryCacheProfile
*/
public function setCacheKey($cacheKey)
{
return new QueryCacheProfile($this->lifetime, $cacheKey, $this->resultCacheDriver);
}
/**
* @param integer $lifetime
*
* @return \Doctrine\DBAL\Cache\QueryCacheProfile
*/
public function setLifetime($lifetime)
{
return new QueryCacheProfile($lifetime, $this->cacheKey, $this->resultCacheDriver);
}
}
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