Criteria分頁查詢消除重複行

[size=large][color=red][b]如果您發現內容含有錯誤或公司內部信息，請予以指出，本人不勝感激。。。。[/b][/color][/size]

[size=large]業務要求：查詢出所有除角色爲管理員以外的所有用戶[/size]

  public Pagination findUserList(final Pagination pagination , final String param)
	{
		 final List result = this.getHibernateTemplate().executeFind(
					new HibernateCallback() {
						public Object doInHibernate(final Session session)
								throws HibernateException, SQLException {
							Criteria criteria = DetachedCriteria.forClass(
									AmUserRole.class).getExecutableCriteria(
									session);
							Criteria userCriteria = criteria.createCriteria("amUser");
							Criteria roleCriteria = criteria.createCriteria("amRole");

                     //去除角色爲管理員的用戶
							roleCriteria.add(Restrictions.not(Expression.in(
                         "roleId",new Long[]{0L})));   
							userCriteria.add(Restrictions.like("name", "%"+param+"%"));
							//userCriteria.add(
                           //Restrictions.like("username",       
                              //param,MatchMode.ANYWHERE);

                      //查詢去除重複行後的總記錄數
				userCriteria.setProjection(Projections.countDistinct("userId")); 
	//hibernate3.0以後返回的是Long型	

	Integer totalCount = (Integer) criteria.uniqueResult(); 
							ProjectionList projectionList = Projections.projectionList();
	                  //決定返回的結果
						projectionList.add(Projections.property("amUser"));   
							criteria.setProjection(Projections.distinct(projectionList));

							userCriteria.addOrder(Order.asc("name"));
			    //判斷是否需要分頁
                            if(pagination.getPageSize() <= 0)
                            {
                            	return criteria.list();
                            }else{
                            	if(0 == pagination.getItemCount())
                            	{                  
                            		System.out.println("totalCount---->"+totalCount);
                            		pagination.setItemCount(totalCount);
                            	}
                            	int pageSize = pagination.getPageSize();
    							int pageNo = pagination.getCurrentPage();
    							int startIndex = pageSize * (pageNo - 1);
    							criteria.setFirstResult(startIndex);
    							criteria.setMaxResults(pageSize);
    							pagination.setPageSize(pageSize);
    							pagination.setCurrentPage(pageNo);
    							return criteria.list();
                            }


						}
					});
		    pagination.setItemList(result);
			return pagination;

	}

[size=large][color=red]這樣返回的結果就是用戶表所映射的用戶對象[/color][/size]