[jdom-interest] Serialization

Noel Grandin noel at peralex.com
Mon Feb 13 01:05:58 PST 2012

I can see serialisation of JDOM objects being useful for RPC protocols 
like RMI and EJB.

I often find it extremely convenient being able to simply return a 
complex object from an application server to a client program.

On 2012-02-13 01:13, Rolf Lear wrote:
> Hi all.
> I have only limited experience with Java serialization. My experiences 
> in the past have always been ugly, but I have never been expert enough 
> in it to be opinionated...
> I have been trying to remedy that now, though, and I have come to the 
> conclusion that JDOM still has broken serialization. The problems I 
> see are:
> 1. we rely on a hodge-podge of serialization mechanisms to implement it.
> 2. we mark 'Filter' and all the Filter subclasses as being 
> serializable, why?
> 3. We have no control of how any sublcasses of our classes implement 
> serialization.
> Fundamentally, XML is specifically designed to make serialization of 
> information easy....
> The whole purpose of JDOM is to make it easy to serialize and 
> deserialize (and inspect and change) XML. Why are we also implementing 
> native Java serialization?
> So, it is my (currently) uninformed opinion that we should strip the 
> Serialization from JDOM entirely.
> If people can find convincing reasons to make JDOM serializable, it is 
> my opinion that it should be implemented as a simple call to 
> XMLOutputter.output(....) to convert the JDOM to a stream (and a 
> reverse ability to parse the results....). This will satisfy any 
> subclassing mechanisms....
> Finally, if there is a convincing reason why that would be 
> inappropriate too, then I think the right answer would be to replace 
> the current serialization process with a redesigned and more robust one.
> So, I am looking for feedback....
> does anyone use Java Serialization on JDOM objects?
> Why?
> Examples?
> Thanks
> Rolf
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