this.extractMetadata = extractMetadata;
    }

    /**
     * Sets the separator for nested keys.
     *
     * @param nestedKeySeparator the nested key separator
     */
    public void setNestedKeySeparator(final String nestedKeySeparator) {
        this.nestedKeySeparator = nestedKeySeparator;
    }

    /**
     * Sets the maximum number of array elements to extract.
     *