deleteItem($key) {@inheritdoc} Parameters

commit() {@inheritdoc}

commit() {@inheritdoc}

saveDeferred(CacheItemInterface $item) {@inheritdoc}

static validateKey(string $key) Validates a cache key according to PSR-6.

clear() {@inheritdoc}

saveDeferred(CacheItemInterface $item) {@inheritdoc}

getItems(array $keys = array()) {@inheritdoc}

class ChainAdapter implements

deleteItem($key) {@inheritdoc} Parameters