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<?php |
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namespace voku\cache; |
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/** |
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* CacheChain: global-cache-chain class |
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* |
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* @package voku\cache |
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*/ |
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class CacheChain implements iCache |
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{ |
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/** |
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* @var array iCache |
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*/ |
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private $caches = array(); |
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/** |
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* __construct |
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* |
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* @param array $caches |
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*/ |
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public function __construct(array $caches = array()) |
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{ |
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array_map( |
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array( |
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$this, |
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'addCache' |
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), $caches |
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); |
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} |
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/** |
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* get caches |
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* |
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* @return array |
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*/ |
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public function getCaches() |
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{ |
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return $this->caches; |
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} |
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/** |
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* add cache |
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* |
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* @param iCache $cache |
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* @param boolean $prepend |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public function addCache(iCache $cache, $prepend = true) |
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{ |
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if ($this === $cache) { |
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throw new \InvalidArgumentException('loop-error, put into other cache'); |
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} |
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if ($prepend) { |
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array_unshift($this->caches, $cache); |
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} else { |
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$this->caches[] = $cache; |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getItem($key) |
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{ |
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/* @var $cache iCache */ |
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foreach ($this->caches as $cache) { |
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if ($cache->existsItem($key)) { |
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return $cache->getItem($key); |
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} |
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} |
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return null; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function setItem($key, $value, $ttl = null) |
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{ |
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/* @var $cache iCache */ |
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foreach ($this->caches as $cache) { |
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$cache->setItem($key, $value, $ttl); |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function setItemToDate($key, $value, \DateTime $date) |
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{ |
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/* @var $cache iCache */ |
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foreach ($this->caches as $cache) { |
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$cache->setItemToDate($key, $value, $date); |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function removeItem($key) |
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{ |
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/* @var $cache iCache */ |
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foreach ($this->caches as $cache) { |
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$cache->removeItem($key); |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function existsItem($key) |
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{ |
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/* @var $cache iCache */ |
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foreach ($this->caches as $cache) { |
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if ($cache->existsItem($key)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function removeAll() |
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{ |
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/* @var $cache iCache */ |
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foreach ($this->caches as $cache) { |
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$cache->removeAll(); |
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} |
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} |
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} |
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voku /
simple-cache
