Yeah, I can see that's the reason for the object to be saved.

My point, though is:  shouldn't the fact that the middle object is immutable
prevent the last object from getting saved when using a one-to-one? This
seems to be the behavior with sets that belong to the middle object.



On Tue, Nov 17, 2009 at 11:54 AM, Fabio Maulo <[email protected]> wrote:

> You have answered your question by yourself.
>
>
> 2009/11/17 Eduardo Scoz <[email protected]>
>
>> Sorry, the only mutable object in my example is the "middle" one, User.
>> The right-side one (UserPreferences) is mutable as it needs to be updated
>> from a different part of the system.
>>
>> Thanks Fabio.
>>
>>
>> On Tue, Nov 17, 2009 at 11:33 AM, Fabio Maulo <[email protected]>wrote:
>>
>>> and those object are mutable or not ? (I mean the "right" side of the
>>> one-to-one)
>>>
>>> 2009/11/17 Eduardo Scoz <[email protected]>
>>>
>>> Hi,
>>>>
>>>> I'm not sure if this is a bug or a feature, so I thought it would be
>>>> worthy to post here.
>>>>
>>>> It seems that during a save operation on a tree that contains immutable
>>>> objects, even though those objects are not updated (correct behavior),
>>>> objects that have a one-to-one relationship to those ones get updated.
>>>>
>>>> For example:
>>>>
>>>> I have a object UserData, with a many-to-one to User with a one-to-one
>>>> UserPreferences.
>>>> User in this case is immutable and kept in read-only cache.
>>>> When I do a save on the UserData object, that object gets saved, and so
>>>> does UserPreferences.
>>>>
>>>> Is that the correct behavior? I would expect only UserData to be saved.
>>>> Sets that are part of User are not updated.
>>>>
>>>> Thanks guys,
>>>>
>>>> Eduardo Scoz
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Fabio Maulo
>>>
>>
>>
>
>
> --
> Fabio Maulo
>

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