From: Michal 'hramrach' Suchanek <hramrach_l@...>
Date: 2002-05-29T01:42:04+09:00
Subject: serialization - how does it really work?

Following the pickaxe book I wrote a class and implemented class method 
_dump. I serialize a subclass of this to a pstore. But the serialization 
I get is the default one (@@@DUMP gets never printed). What I am 
missing? Is there some place to look for more details?

       class StoreRec < StrHash
-       include ProcRec
|       extend ProcRec
|       def StoreRec._dump(lvl)
|-        p '@@@ DUMP'
||        ld=@@lasttime._dump(lvl)
||        td=@@tcache._dump(lvl)
||        dd=@@dcache._dump(lvl)
||        sd=super
||        "#{ld.length}|#{td.length}|#{dd.length}|#{sd.length}|"<<
||--          ld<< td<< dd<< sd
|       end
|       def _load(str)
|-        p '@@@ LOAD'
|| 
   ll,tl,dl,sl=(1..4).collect{
||-- 
       str.slice!(0..str.index('|')).chomp('|').to_i};
||        @@lasttime=Marshal::load(str.slice!(0...ll));
||        @@tcache=Marshal::load(str.slice!(0...tl));
||        @@dcache=Marshal::load(str.slice!(0...dl));
||        raise unless str.length==sl
||        super
|       end
       end