[jboss-jira] [JBoss JIRA] Commented: (JGRP-196) Investigate backward/forward binary compatibility between JGroups releases

[Bela Ban (JIRA)]

    [ https://jira.jboss.org/jira/browse/JGRP-196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12441722#action_12441722 ] 

Bela Ban commented on JGRP-196:
-------------------------------

Look into using a description language to describe the types and then generate the marshalling code. This code would reside in a factory, so the marshalled instances could be *immutable*.

Something like Google Protocol Buffers. This could possibly also generate the C marshalling code for the wireshark plugin

> Investigate backward/forward binary compatibility between JGroups releases
> --------------------------------------------------------------------------
>
>                 Key: JGRP-196
>                 URL: https://jira.jboss.org/jira/browse/JGRP-196
>             Project: JGroups
>          Issue Type: Feature Request
>    Affects Versions: 2.2.8, 2.2.9, 2.2.9.1, 2.3
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 2.x
>
>
> Goal: JGroups versions are able to read messages from older and *newer* versions.
> Solution: provide a plugin directory which contains marshaller factories which are keyed by version ID and know how to read/write to/from older/newer versions.

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