}

    protected IdsQueryBuilder regIdsQ(Collection<String> values) {
        checkEsInvalidQueryCollection("_id", values);
        IdsQueryBuilder idsQuery = QueryBuilders.idsQuery().addIds(values.toArray(new String[values.size()]));
        regQ(idsQuery);
        return idsQuery;
    }

    protected MatchQueryBuilder regMatchQ(String name, Object value) {
        checkEsInvalidQuery(name, value);

    }

    protected IdsQueryBuilder regIdsQ(Collection<String> values) {
        checkEsInvalidQueryCollection("_id", values);
        IdsQueryBuilder idsQuery = QueryBuilders.idsQuery().addIds(values.toArray(new String[values.size()]));
        regQ(idsQuery);
        return idsQuery;
    }

    protected MatchQueryBuilder regMatchQ(String name, Object value) {
        checkEsInvalidQuery(name, value);

    }

    protected IdsQueryBuilder regIdsQ(Collection<String> values) {
        checkEsInvalidQueryCollection("_id", values);
        IdsQueryBuilder idsQuery = QueryBuilders.idsQuery().addIds(values.toArray(new String[values.size()]));
        regQ(idsQuery);
        return idsQuery;
    }

    protected MatchQueryBuilder regMatchQ(String name, Object value) {
        checkEsInvalidQuery(name, value);

                }
                queryBuf.append(')');
            }
        }));

        final String baseQuery = queryBuf.toString().trim();
        if (StringUtil.isBlank(sortField)) {
            return baseQuery;
        }
        return baseQuery + " sort:" + sortField;
    }

    /**
     * Appends a query string to the query buffer with proper formatting.

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return searchEngineClient.getDocument(fessConfig.getIndexDocumentUpdateIndex(), builder -> {
            builder.setQuery(QueryBuilders.idsQuery().addIds(id));
            builder.setFetchSource(fields, null);
            return true;
        }).orElse(null);
    }

    /**
     * Retrieves a list of documents whose IDs start with the specified prefix.