return SortBuilders.fieldSort(field).order(order);
    }

    public void setHighlightPrefix(final String highlightPrefix) {
        this.highlightPrefix = highlightPrefix;
    }

    public String getHighlightPrefix() {
        return highlightPrefix;
    }

    public FacetInfo getDefaultFacetInfo() {
        return defaultFacetInfo;
    }

    public void setDefaultFacetInfo(final FacetInfo defaultFacetInfo) {

                builder.partialResults(true);
            }

            // build highlighting fields
            final String hlPrefix = ComponentUtil.getQueryHelper().getHighlightPrefix();
            for (final SearchHit searchHit : searchHits.getHits()) {
                final Map<String, Object> docMap = parseSearchHit(fessConfig, hlPrefix, searchHit);