/*
     * @author 於良伟
     *       根先序遍历算法
     * @param bizes  所选的遍历总数据
     * @param bizID 当前遍历的根节点id
     * @param treeList 遍历返回结果
     * @return void
     *
     * */
    private void traversal(List bizes,Long bizID, List treeList) {
             for (int i = 0; i < bizes.size(); i++) {
                 Business business = (Business) bizes.get(i);
                 if (business.getParentBusiness()!=null && bizID.equals(business.getParentBusiness().getId())) {
                     /*如果当前节点存在父节点并且当前节点的父节点编号与bizID相同,则添加到treeList*/
                     treeList.add(business);
                     /*遍历*/
                     traversal(bizes,business.getId(),treeList);
                 }

             } //for
    }

/*
     * @author 於良伟
     *     根据所选收支类型创建树
     * @param  biz  所选节点
     * @param  IOflag 收支类型
     * @return  List treeList
     *
     *
     * */
    public List builderTreeByBiz(final Business biz,final Integer IOflag){
        /*从指定节点构造收支类型树结构的List*/
        List treeList = new ArrayList();

        if (biz==null) {
            /*如果biz为空,返回空List*/
            return treeList;
        }

        /*添加biz到treeList*/
        treeList.add(biz);
        /*根先序遍历*/
        traversal(getBusinessByDepartment(biz.getDept(),IOflag),biz.getId(),treeList);

        return treeList;

    }