Re: Deserializaton order

[Frederico Muñoz]

Hello,

On 2005-04-03 07:15:35 +0100 Richard Frith-Macdonald <address@hidden> wrote:

> On 2005-04-02 22:51:50 +0100 Frederico Muñoz <address@hidden> wrote:
> 
>> The problem I'm having is that when I deserialize the data into a 
>> NSDictionary to perform the copy operations that filenames appear in random 
>> order, 
(...)
> The order of keys in a dictionary is undefined (nothing to do with 
> serialization ... that's the case wherever you use a dictionary or set) ... 
> so you can't depend on key ordering. What you can do is simply serialize an 
> additional object ... an array containing all the keys in the correct order 
> ... so then to do the copy you simply deserialize both the dictionary and the 
> array, then iterate through the array using the values as keys to obtain the 
> files you need to copy.

Ah, ok, thanks. I was mixing the efect for the cause, since I saw the 
serialized data (in XML) in the right order I assumed that the "problem" was 
with the deserialization process. I will do as you told, add an array. I also 
read about the sort methods of NSDictionary, but didn't get far because it 
works on the keys, and I at most could add a "Order" key with a value in the 
NSDictionary that is the value for the key.

Best regards,

fsmunoz
-- 
Frederico Muñoz