if (stemmerOverrideItemList == null) {
            reload(null);
        }

        if (offset >= stemmerOverrideItemList.size() || offset < 0) {
            return new PagingList<>(Collections.<StemmerOverrideItem> emptyList(), offset, size, stemmerOverrideItemList.size());
        }

        int toIndex = offset + size;

        }
        return start;
    }

    @Override
    public int getOffset() {
        if (offset == null) {
            offset = 0;
        }
        return offset;
    }

    @Override
    public int getPageSize() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        if (num == null) {

            params.put("Response Time", toNumberString(e.getResponseTime()));
            params.put("Hit Count", toNumberString(e.getHitCount()));
            params.put("Offset", toNumberString(e.getQueryOffset()));
            params.put("Page Size", toNumberString(e.getQueryPageSize()));
            params.put("Client IP", e.getClientIp());
            params.put("Referer", e.getReferer());

    /** The key of the configuration. e.g. span */
    String QUERY_HIGHLIGHT_FRAGMENTER = "query.highlight.fragmenter";

    /** The key of the configuration. e.g. -1 */
    String QUERY_HIGHLIGHT_FRAGMENT_OFFSET = "query.highlight.fragment.offset";

    /** The key of the configuration. e.g. 0 */
    String QUERY_HIGHLIGHT_NO_MATCH_SIZE = "query.highlight.no.match.size";

    /** The key of the configuration. e.g. score */

        if (protwordsItemList == null) {
            reload(null);
        }

        if (offset >= protwordsItemList.size() || offset < 0) {
            return new PagingList<>(Collections.<ProtwordsItem> emptyList(), offset, size, protwordsItemList.size());
        }

        int toIndex = offset + size;
        if (toIndex > protwordsItemList.size()) {

            this.responseFields = responseFields;
            return this;
        }

        public SearchConditionBuilder offset(final int offset) {
            this.offset = offset;
            return this;
        }

        public SearchConditionBuilder size(final int size) {
            this.size = size;
            return this;
        }

            throwValidationError(e.getMessageCode(), this::asListHtml);
        } catch (final ResultOffsetExceededException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Invalid offset: {}", form.offset, e);
            }
            throwValidationError(messages -> messages.addErrorsResultSizeExceeded(GLOBAL), this::asListHtml);
        }

          schema:
            type: integer
            minimum: 0
            exclusiveMinimum: false
            default: 0
            example: 0
        - name: offset
          in: query
          description: Offset from a start position
          required: false
          schema:
            type: integer
            minimum: 0
            exclusiveMinimum: false
            default: 0

        if (startPosition * 2 >= windowSize) {
            int offset = params.getOffset();
            if (offset < 0) {
                offset = 0;
            } else if (offset > windowSize / 2) {
                offset = windowSize / 2;
            }
            int start = startPosition - offset;
            if (start < 0) {
                start = 0;
            }

    protected long queryTime;

    // for testing
    protected QueryResponseList(final List<Map<String, Object>> documentList, final int start, final int pageSize, final int offset) {
        this.parent = documentList;
        this.offset = offset;
        this.start = start;
        this.pageSize = pageSize;
    }