String QUERY_HIGHLIGHT_TEXT_FRAGMENT_TYPE = "query.highlight.text.fragment.type";

    /** The key of the configuration. e.g. 3 */
    String QUERY_HIGHLIGHT_TEXT_FRAGMENT_SIZE = "query.highlight.text.fragment.size";

    /** The key of the configuration. e.g. 5 */
    String QUERY_HIGHLIGHT_TEXT_FRAGMENT_PREFIX_LENGTH = "query.highlight.text.fragment.prefix.length";