Mongolid\Cursor\CacheableCursor::getCursor PHP Method

    protected function getCursor() : Traversable
    {
        // Returns original (non-cached) cursor
        if ($this->ignoreCache || $this->position >= self::DOCUMENT_LIMIT) {
            return $this->getOriginalCursor();
        }
        // Returns cached set of documents
        if ($this->documents) {
            return $this->documents;
        }
        // Check if there is a cached set of documents
        $cacheComponent = Ioc::make(CacheComponentInterface::class);
        $cacheKey = $this->generateCacheKey();
        if ($this->documents = $cacheComponent->get($cacheKey, null)) {
            return $this->documents = new ArrayIterator($this->documents);
        }
        // Stores the original "limit" clause of the query
        $this->storeOriginalLimit();
        // Stores the documents within the object and cache then for later use
        $this->documents = [];
        foreach (parent::getCursor() as $document) {
            $this->documents[] = $document;
        }
        $cacheComponent->put($cacheKey, $this->documents, 0.6);
        // Drops the unserializable DriverCursor.
        $this->cursor = null;
        // Return the documents iterator
        return $this->documents = new ArrayIterator($this->documents);
    }