[jbosscache-dev] Marshalling for state transfer in HEAD

[Manik Surtani]

True, but this allows us the chance to change NodeData objects as we  
move along with versions (i.e., the VersionAwareMarshaller would  
delegate to a different marshaller implementation to be compatible).

Even if compatibility is not so much of an issue, this approach helps  
with performance (magic no's + JBoss Serialization) as well as having  
a single place in the codebase where all marshalling occurs.


--
Manik Surtani

Lead, JBoss Cache
JBoss, a division of Red Hat

Email: manik at jboss.org
Telephone: +44 7786 702 706
MSN: manik at surtani.org
Yahoo/AIM/Skype: maniksurtani



On 14 Dec 2006, at 17:38, Vladimir Blagojevic wrote:

> Hey,
>
> I am not 100% sure if we need this for compatibility. Am I correct to
> assume that since we write/read only NodeData objects to/from streams
> (in HEAD) then we do not have to worry about versions any more as long
> as we keep NodeData backward compatible (which we do).
>
> Let me know.
>
> Vladimir
>
>
>
>> -----Original Message-----
>> From: jbosscache-dev-bounces at lists.jboss.org
>> [mailto:jbosscache-dev-bounces at lists.jboss.org] On Behalf Of
>> Manik Surtani
>> Sent: Thursday, December 14, 2006 11:57 AM
>> To: jbosscache-dev at lists.jboss.org
>> Subject: [jbosscache-dev] Marshalling for state transfer in HEAD
>>
>> I've just noticed that marshalling of nodes for transferring
>> state in HEAD is hand-wired.
>>
>> We should do this thru the VersionAwareMarshaller framework
>> we have in place for other comms as well as marshalling to
>> cache loaders, to benefit from the data streams being
>> version-aware as well as being more efficient by making use
>> of magic numbers instead of class headers + using JBoss
>> Serialization where useful.
>>
>> I've created a JIRA task for this, Vlad, perhaps you could do
>> this alongside the SST stuff you've got in HEAD?
>>
>> 	http://jira.jboss.com/jira/browse/JBCACHE-908
>>
>> Cheers,
>> --
>> Manik Surtani
>>
>> Lead, JBoss Cache
>> JBoss, a division of Red Hat
>>
>> Email: manik at jboss.org
>> Telephone: +44 7786 702 706
>> MSN: manik at surtani.org
>> Yahoo/AIM/Skype: maniksurtani
>>
>>
>>
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>
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