eXtremeComponents-1.0.1-RC2 关于limit 的一个问题

版本：eXtremeComponents-1.0.1-RC2
环境：JSF

文件：departments.jsp
<f:view>
<f:loadBundle var="text" basename="#{departmentList.bundleName}"/>
<h:form id="editDepartment">
    <ec:table
        items="departmentList.departments"
        action="${pageContext.request.contextPath}/hr/departments.html"
        imagePath="${pageContext.request.contextPath}/images/table/*.gif"
        title="${text['userList.title']}"
        rowsDisplayed="10"
        form="editDepartment" var="department"
        retrieveRowsCallback="limit"
        filterRowsCallback="limit"
        sortRowsCallback="limit"
        view="limit"
        autoIncludeParameters="false">
        <ec:row highlightRow="true">
            <ec:column title="${text['department.name']}" property="name"/>     
        </ec:row>
    </ec:table>   
</h:form>
</f:view>

文件：DepartmentList.java
    public List getDepartments() {
        Context context = new HttpServletRequestContext(getRequest());
        LimitFactory limitFactory = new TableLimitFactory(context);
        Limit limit = new TableLimit(limitFactory);
       
        //int pageSize = limit.getCurrentRowsDisplayed();
        //可能是一个bug，生成 limit 的时候，并没有给 currentRowsDisplayed 赋值
        int pageSize = limitFactory.getCurrentRowsDisplayed(0, 10);
       
        FilterSet filter = limit.getFilterSet();
       
        Page page = new PageHibernate(limit.getPage(), pageSize);
        page.setFilters(FilterUtil.convert(filter));
       
        page = departmentManager.getDepartments(page);
       
        List list = page.getThisPageElements();
       
        limit.setRowAttributes(page.getTotalNumberOfElements(), page.getPageSize());
       
        getRequest().setAttribute("totalRows", new Integer(page.getTotalNumberOfElements()));
       
        return list;
    }

结果：
1.从limit中取不到pagesize，可能是一个bug，跟踪TableLimit原码，初始化的时候，并没有给 currentRowsDisplayed 赋值
2.没有显示“最后一页”，这个按钮
3.不能导出excel文件，报错：
There is no export defined. This commonly happens if you do not declare the export (Export or ExportTag) before the row and columns.