[jboss-jira] [JBoss JIRA] Updated: (JBCACHE-474) Compatibility fwk for all classes passed on the wire

Compatibility fwk for all classes passed on the wire ---------------------------------------------------- Key: JBCACHE-474 URL: http://jira.jboss.com/jira/browse/JBCACHE-474 Project: JBoss Cache Issue Type: Feature Request Security Level: Public(Everyone can see) Affects Versions: 1.2.4SP1 Reporter: Manik Surtani Assigned To: Manik Surtani Fix For: 2.2.0.GA Classes that are serialized: Fqn MethodCall (JG?) *Exception GlobalTransaction State transfers 1) Lets use JGroups Streamable where possible (dependency? Externalizable instead?) 2) Provide a header short containing version 3) Use a MarshallingFactory for each version so we can understand messages from older installations 4) Provide MarshallingFactories as plugins so old versions can talk to newer versions (fwd compat) Object unmarshal(short version, Class type, InputStream is) { // if plugin directory empty or unset || version == currentVersion, revert back to existing mechanism // else // Look up UnmarshallerPlugin in the compat table (populated at startup with the contents of the plugin dir) // Lookup based on version and class type. Unmarshaller then extracts and regenerates the relevant object. } Unit test as well. Standalone fwk? jboss-compat.jar + plugins.