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<?php |
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/** |
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* This file is part of slick/orm package |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Slick\Orm\Repository; |
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use Slick\Cache\Cache; |
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use Slick\Cache\CacheStorageInterface; |
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use Slick\Orm\EntityInterface; |
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/** |
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* Identity Map |
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* |
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* Ensures that each object gets loaded only once by keeping every loaded |
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* object in a map. Looks up objects using the map when referring to them. |
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* |
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* @package Slick\Orm\Repository |
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*/ |
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class IdentityMap implements IdentityMapInterface |
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{ |
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/** |
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* @var CacheStorageInterface |
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*/ |
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protected $cache; |
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/** |
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* Set an entity |
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* |
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* @param EntityInterface $entity |
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* |
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* @return self|$this|IdentityMapInterface |
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*/ |
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public function set(EntityInterface $entity) |
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{ |
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$this->getCache()->set($entity->getId(), $entity); |
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return $this; |
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} |
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/** |
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* Gets the entity with provided id |
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* |
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* @param mixed $entityId |
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* |
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* @param null $default |
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* |
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* @return null|mixed|EntityInterface |
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*/ |
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public function get($entityId, $default = null) |
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{ |
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return $this->getCache()->get($entityId, $default); |
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} |
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/** |
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* Remove an entity from identity map |
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* |
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* @param mixed $entityId |
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* |
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* @return self|$this|IdentityMapInterface |
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*/ |
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public function remove($entityId) |
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{ |
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$this->getCache()->erase($entityId); |
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return $this; |
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} |
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/** |
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* Set cache storage for this identity map |
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* |
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* @param CacheStorageInterface $cache |
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* |
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* @return $this|self|IdentityMap |
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*/ |
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public function setCache(CacheStorageInterface $cache) |
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{ |
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$this->cache = $cache; |
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return $this; |
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} |
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/** |
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* Gets cache storage for this identity map |
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* |
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* @return CacheStorageInterface |
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*/ |
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public function getCache() |
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{ |
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if (null == $this->cache) { |
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$this->setCache(Cache::get(Cache::CACHE_MEMORY)); |
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} |
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return $this->cache; |
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} |
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} |
slickframework /
orm
