Re: [Boost-users] [serialization] skipping data

From: Peter Dimov (pdimov_at_[hidden])
Date: 2006-07-10 09:15:42

Joel de Guzman wrote:
> Hi,
>
> Here's a use case that I can't seem to find a way to
> do using boost.serialization.
>
> Say with version 1, I want to serialize X Y and Z. These
> are hierarchical and expensive data structures. Now, with
> version 2, I do not need to create Y objects anymore. Yet,
> I still have to open version 1 files for backward compatibility.
> So, when loading version 1 files, I want to skip reading Y
> objects. How do I do that without having to create a temporary
> Y object that will be discarded later?

You need to define a proxy Y object that can deserialize itself into thin 
air.