/*
     * @author 於良偉
     *       根先序遍歷算法
     * @param bizes  所選的遍歷總數據
     * @param bizID 當前遍歷的根節點id
     * @param treeList 遍歷返回結果
     * @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())) {
                     /*如果當前節點存在父節點并且當前節點的父節點編號與bizID相同,則添加到treeList*/
                     treeList.add(business);
                     /*遍歷*/
                     traversal(bizes,business.getId(),treeList);
                 }

             } //for
    }

/*
     * @author 於良偉
     *     根據所選收支類型創建樹
     * @param  biz  所選節點
     * @param  IOflag 收支類型
     * @return  List treeList
     *
     *
     * */
    public List builderTreeByBiz(final Business biz,final Integer IOflag){
        /*從指定節點構造收支類型樹結構的List*/
        List treeList = new ArrayList();

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

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

        return treeList;

    }