/**
* Persists a cache item immediately.
*
* @param CacheItemInterface $item
* The cache item to save.
*
* @return bool
* True if the item was successfully persisted. False if there was an error.
*/
public function save(CacheItemInterface $item)
{
if (!$item instanceof CacheItem) {
return false;
}
// remove from queue
if (isset($this->_queue[$item->getKey()])) {
unset($this->_queue[$item->getKey()]);
}
/** @var CacheItem $cacheItem */
$cacheItem = $item;
// delete an expired item
$expiry = $cacheItem->getExpiry();
if ($expiry !== 0 && $expiry < time()) {
$this->deleteItem($cacheItem->getKey());
return true;
}
$this->_cache->set($item->getKey(), $item->get() === null ? new NullObject() : $item->get(), $expiry === 0 ? 0 : $expiry - time());
return true;
}
/**
* @return int
*/
public function clear()
{
return $this->cache->delete($this->key);
}