How can I tell whether an `NSManagedObject` has been deleted?

Question

I have an NSManagedObject that has been deleted, and the context containing that managed object has been saved. I understand that isDeleted returns

Answer 1

I fear the discussion in the other answers is actually hiding the simplicity of the correct answer. In pretty much all cases, the correct answer is:

if ([moc existingObjectWithID:object.objectID error:NULL])
{
    // object is valid, go ahead and use it
}

The only cases this answer doesn't apply in is:

1. If you are targetting Mac OS 10.5 or earlier
2. If you are targetting iOS 2.0 or earlier
3. If the object/context has not been saved yet (in which case you either don't care because it won't throw a NSObjectInaccessibleException, or you can use object.isDeleted)