}

    @Override
    public void paging(int pageSize, int pageNumber) {
        if (pageSize <= 0) {
            throwPagingPageSizeNotPlusException(pageSize, pageNumber);
        }
        fetchFirst(pageSize);
        xfetchPage(pageNumber);
    }

    protected void throwPagingPageSizeNotPlusException(int pageSize, int pageNumber) {

    }

    @Override
    public void paging(int pageSize, int pageNumber) {
        if (pageSize <= 0) {
            throwPagingPageSizeNotPlusException(pageSize, pageNumber);
        }
        fetchFirst(pageSize);
        xfetchPage(pageNumber);
    }

    protected void throwPagingPageSizeNotPlusException(int pageSize, int pageNumber) {

    }

    @Override
    public void paging(int pageSize, int pageNumber) {
        if (pageSize <= 0) {
            throwPagingPageSizeNotPlusException(pageSize, pageNumber);
        }
        fetchFirst(pageSize);
        xfetchPage(pageNumber);
    }

    protected void throwPagingPageSizeNotPlusException(int pageSize, int pageNumber) {