src/M6Web/Component/Redis/Cache.php
public function watch($key)
    {
        $redis = $this->getRedis($key);
        $this->notifyEvent('watch', array($this->getPatternKey().$key));
        $redis->watch($this->getPatternKey().$key);
    }
public function watch($key)
    {
        $redis = $this->getRedis($key);
        $this->notifyEvent('watch', array($this->getPatternKey().$key));
        $redis->watch($this->getPatternKey().$key);
    }
watch

@param string $key clé

@return void