[jbosscache-dev] JBCACHE-471 - Handling JGroups MERGE

This was on 2.2.0's task list: http://jira.jboss.com/jira/browse/JBCACHE-471 The last time we spoke about this was in Neuchatel, and we decided we'd expose an interface, a MergeHandler, that people could implement. We'd also provide a few standard implementations, like EvictEntireClusterStateHandler and FatalStopMergeHandler? I think a SingleWinnerHandler and DisjointedSubtreeMergeHandler can come later, as they would both involve a proxying mechanism to talk to remote caches being in place - something which will be developed as a part of Partitioning [1]. We didn't discuss the design of this interface - how about a single callback with: public interface MergeHandler { void handleMerge(Cache currentInstance, List<Address> winningSubPartition, List<Address> losingSubPartition); } Can we see any other information being needed? [1] http://jira.jboss.org/jira/browse/JBCACHE-60 -- Manik Surtani Lead, JBoss Cache manik(a)jboss.org