//這是儲存時，從UI獲取的改變後的聚合VO
AggregatedValueObject billVO = getBillUI().getChangedVOFromUI();
//子表VO陣列
SuperVO[] vos = (SuperVO[]) billVO.getChildrenVO();

//一種方法是，直接判斷這個改變後的子表VO的狀態
for(int i =0,len = vos.length;i<len;i++){
          if(vos[i].getStatus()==VOStatus.DELETED)
                   //這裡就是刪除的子表VO
}

//如果上一種方法不行，則只能與儲存前的VO作對比了
AggregatedValueObject oldVO = getBufferData().getCurrentVOClone();
oldvos = (SuperVO[]) oldVO.getChildrenVO();
if (oldvos != null && oldvos.length > 0) {
        for (int i = 0, len_old = oldvos.length; i < len_old; i++) {
                SuperVO oldvo = oldvos[i];
                String oldpk = oldvo.getPrimaryKey();
                if (oldpk == null || oldpk.trim().length() == 0)
                        continue;
                int rowindex = -1;
                // 與新表體進行比較
                if (newvos != null && newvos.length > 0) {
                        for (int j = 0, len_new = newvos.length; j < len_new; j++) {
                                SuperVO newvo = newvos[j];
                                String newpk = newvo.getPrimaryKey();
                                if (newpk == null || newpk.trim().length() == 0
                                                || !newpk.equals(oldpk))
                                        continue;
                                rowindex = j;
                                break;
                        }
                }
                if (rowindex == -1) {
                        //沒在儲存前的表體VO中找到的，就是要刪除的
                        oldvo.setStatus(VOStatus.DELETED);
                        al.add(oldvo);
                }
        }
}