防止序列化

Question

我有一個Matlab類，實現序列化和反序列化會很痛苦，而且不需要。 因此，我已經超負荷saveobj如下：

function sobj = saveobj(self) 
     sojb = []; 
     error(['atmlab:' mfilename ':nostoring'], ... 
      ['You tried to store %s %s. Loading is impossible, ' ... 
      'therefore I refuse to store. Sorry.'], ... 
      class(self), self.name); 
    end 

不幸的是，當我測試，Matlab的嘗試是有益的，變成警告到錯誤（兩次出於某種原因）：

>> save('/tmp/test.mat', 'X') 
Warning: While saving an object of class 'SatDataset': 
You tried to store SatDataset amsua. Loading is impossible, therefore I refuse to store. Sorry. 
(Type "warning off atmlab:SatDataset:nostoring" to suppress this warning.) 
Warning: While saving an object of class 'SatDataset': 
You tried to store SatDataset amsua. Loading is impossible, therefore I refuse to store. Sorry. 
(Type "warning off atmlab:SatDataset:nostoring" to suppress this warning.) 

我可以使用undocumented feature打開警告插入錯誤：

>> warning error atmlab:SatDataset:nostoring 
>> save('/tmp/test.mat', 'X') 
Error using save 
While saving an object of class 'SatDataset': 
You tried to store SatDataset amsua. Loading is impossible, therefore I refuse to store. Sorry. 

Unexpected error status flag encountered. Resetting to proper state. 

但是，這並不理想，因爲我不想要依靠UNDOC並且我肯定不想強迫用戶這樣做。

我該如何有效地拋出一個錯誤，防止用戶嘗試從我的班級串行化對象？

---

按要求，最低例子重現情況：

% in TestClass.m 
classdef TestClass < handle 
    methods 
     function sobj = saveobj(self) 
      sojb = []; 
      error('Unable to store %s objects', class(self)); 
     end 
    end 
end 

% on the interactive prompt: 

>> t = TestClass(); 

>> save('/tmp/fubar.mat', 't'); 
Warning: While saving an object of class 'TestClass': 
Unable to store TestClass objects 
Warning: While saving an object of class 'TestClass': 
Unable to store TestClass objects 

Answer 1

個人取代你的error()電話，我更喜歡將所有屬性標記爲Transient，並讓對象有效地具有無效狀態，即保存/加載的結果。防止MATLAB保存您的數據非常困難，您的解決方法可能會嚴重干擾用戶的工作流程。

Answer 2

你的代碼實際上引發錯誤，你應該warning()