On Thu, Nov 17, 2011 at 1:56 AM, Yanni Chiu <yanni@rogers.com> wrote:

An earlier version of Fuel did not having the substitution feature. So, I had custom mapping code to pre-process the structures before passing to Fuel for serialization, and to post-process the deserialized structures. The main purpose of the code was to nil out the PUSecurity objects, because they were linked to too many other Pier objects.

So you have already solved this one using the substitution hook explained here: http://rmod.lille.inria.fr/web/pier/software/Fuel/Version1.7/Hooks
?
�

I'm now eliminating the custom mapping code by using Fuel substitution. The PRFile object was handled by saving the file contents in an instance variable of the mapping object. I've eliminated the custom mapping object. Now, how should the file contents be saved/restored, using the substitution feature?

Let me see if I understand....PRFile has a reference to a file (on disk). So what you want is to serialize not only the PRFile but also the contents of the file?

�

I'm thinking of substituting a proxy object, which somehow "becomes" a PRFile after deserialization.

Any other suggestions?