return null;
            }

            @Override
            public String getSort() {
                return null;
            }

            @Override
            public int getStartPosition() {
                return 0;
            }

            @Override
            public int getOffset() {
                return 0;
            }

            @Override

    public Integer pn;

    @Size(max = 1000)
    public String sdh;

    @Size(max = 100)
    public String track_total_hits;

    // advance

    @Override
    public int getStartPosition() {
        if (start == null) {
            start = ComponentUtil.getFessConfig().getPagingSearchPageStartAsInteger();
        }
        return start;
    }

    @Override
    public int getOffset() {

    public Map<String, String[]> getFields() {
        return fields;
    }

    @Override
    public Map<String, String[]> getConditions() {
        return as;
    }

    @Override
    public int getStartPosition() {
        if (start == null) {
            start = ComponentUtil.getFessConfig().getPagingSearchPageStartAsInteger();
        }
        return start;
    }

    @Override
    public int getOffset() {

    public abstract GeoInfo getGeoInfo();

    public abstract FacetInfo getFacetInfo();

    public abstract HighlightInfo getHighlightInfo();

    public abstract String getSort();

    public abstract int getStartPosition();

    public abstract int getPageSize();

    public abstract int getOffset();

    public abstract String[] getExtraQueries();

    public abstract Object getAttribute(String name);