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From Andrus Adamchik <>
Subject Re: Committing changes for specified individual objects
Date Mon, 23 May 2016 07:31:34 GMT
Hi Brian,

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> On May 19, 2016, at 7:22 PM, Brian Baillargeon <> wrote:
> Hey folks,
> Generally, I retrieve objects using
> BaseContext.getThreadObjectContext().performQuery(query);
> and after creating / updating / deleting objects, I commit changes with
> BaseContext.getThreadObjectContext().commitChanges();
> This commits all changes on the current thread's ObjectContext, but is
> there any way to specify which individual objects you want to commit
> changes for? I'm just looking for a best practice to safeguard my
> objects, but I think this would be a valid use case:
> You have a table that logs exceptions, and you encounter an exception
> while modifying an object backed by another table. So you want to
> persist the exception's log, but not the object you were modifying.
> I've thought about separating my objects onto different ObjectContexts
> (Ie. children of getThreadObjectContext()), but this doesn't seem like a
> good solution, especially if you have relationships (since related
> objects have to be in the same ObjectContext).
> Any suggestions? I'm using Cayenne 3.0.2, but I'm all ears for 3.1
> suggestions too.
> Thanks,
> Brian Baillargeon

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