私有方法八

/**
     * @author : lKF35745
     * @version: 1.0
     * <p>时间 : 2011-1-21</p>
     * <p>描述 : conferID是否是conferIdList上级的会议ID</p>
     * <p>Copyright 1988-2005, Huawei Tech. Co., Ltd.</p>
     * @param conferIdList 所有上级会议ID
     * @param conferID 父会议ID
     * @return
     */
    private List<String> getParentConferId(List<String> conferIdList,
            String conferID)
    {
        if (logger.isDebugEnabled())
        {
            logger.debug("begin to getUpperConferID and params is "
                    + conferIdList.size() + "ConferenID is " + conferID);
        }
        
        if (null == conferIdList || conferIdList.size() < 1)
        {
            logger.warn("params conferIdList is null or size <1 ");
            return null;
        }
        List<String> ParentConferId = new ArrayList<String>();
        for (int i = 0; i < conferIdList.size(); i++)
        {
            String upperConferID = conferIdList.get(i);
            if (!upperConferID.equals(conferID))
            {
                ParentConferId.add(upperConferID);
                continue;
            }
            ParentConferId.add(upperConferID);
            break;
        }
        if (ParentConferId.size() < 1)
        {
            logger.warn("upperConferIDs size is zero");
            return null;
        }
        if (logger.isDebugEnabled())
        {
            logger.debug("end to getUpperConferID and result is "
                    + ParentConferId.toString());
        }
        return ParentConferId;
    }