From: sayoyo Sayoyo <sayoyo@...>
Date: 2008-05-23T01:16:19+09:00
Subject: customized serialization unreliable????

Hi,

I have a strange problem with the customized serialization...
I have a large object which is built by several classes and each class
has its own marshal_dump and marshal_load, like:

class YYY
   attr_reader :data, :version

   def initialize
     @data = "different objects"
     @version = 1
   end

   def marshal_dump()
      return [@version,@data]
   end

   def marshal_load(var)
      @version = var[0]
      case @version
           when 1
               @data = var[1]
           else
               #do something else
           end
   end
end

The problem I find out is the serialization works randomly, sometime the
object is serialized correctly and sometime not.(since I'm not able to
deserialize the object, some of the attributes of the objects become
nil) also I find out the size of serialized file is different each time.
and I try to put the serialized data in memory, the size of the memory
is also different each time. like this:

                  dumpStr = Marshal.dump(mainResults)
                  puts dumpStr.length.to_s()
                  mainResults2 = Marshal.load(dumpStr)

Does someone know anything about the customized serialization? There is
not a lot of doc about this....

Thanks you very much

Sayoyo
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