This is about JBCACHE-64
To be able to configure caches on a per-region basis.
What can be configured per-region?
Currently (2.x) available:
For JBCACHE-64 (3.0.0)
Isolation level (see JBossCacheMVCC)
REQUIRES_NEW, NONE, etc.
Replication (SYNC/ASYNC, INVALIDATION, LOCAL)
An Fqn can define a Node which is the root of the region
Regions within regions allowed
Each region to have a Configuration, which inherits from it's parent region (if region is within a region) or the cache-wide default (copies it)
Some elements may be dynamic
If changing on the fly, acquire an exclusive lock on all nodes in the region (and any sub-regions)
Update interceptors on all nodes in the region accordingly
Release exclusive locks
Any eviction policy updates in a region will reset eviction queues!