日期:2014-05-16  浏览次数:20485 次

数据库操作基类设计2
    public List<T> queryAll() // 查询Domain所有记录
    {
        String statementName = entitySimpleClassName + ".queryAll";
        return getSqlMapClientTemplate().queryForList(statementName);
    }
    public T queryById(String id) // 根据对象id查询Domain
    {
        String statementName = entitySimpleClassName + ".queryById";
        return (T)getSqlMapClientTemplate().queryForObject(statementName, id);
    }
    public int update(T t)
    {
        String statementName = entitySimpleClassName + ".update";
        return getSqlMapClientTemplate().update(statementName, t);
    }
    public int deleteById(String id)
    {
        String statementName = entitySimpleClassName + ".deleteById";
        return getSqlMapClientTemplate().delete(statementName, id);
    }
    public int deleteByCriteria(T criteria)// 根据标准删除指定对象集合
    {
        String statementName = entitySimpleClassName + ".deleteByCriteria";
        return getSqlMapClientTemplate().delete(statementName, criteria);
    }
    public List<T> queryByCriteria(T criteria)
    {
        String statementName = entitySimpleClassName + ".query";
        List<T> entities = getSqlMapClientTemplate().queryForList(statementName, criteria);
        return entities;
    }
    /**
     * 根据标准查询分页查询对象列表
     * <p>SQL语句id为query和queryCounts<p>
     * @param criteria 查询标准
     * @param pageNo 当前页号
     * @param countPerPage 每页展示数量
     * @return PaginationSupport 分页对象
     */
    public PaginationSupport<T> queryPagingEntities(T criteria, int pageNo, int countPerPage)
    {
        String statementName = entitySimpleClassName + ".query";
        return queryForPagination(criteria, pageNo, countPerPage, statementName);
    }