Add dynamic grouping capabilities for unmodifiable key classes. --------------------------------------------------------------- Key: ISPN-1242 URL: https://issues.jboss.org/browse/ISPN-1242 Project: Infinispan Issue Type: Feature Request Components: Core Affects Versions: 5.0.0.CR7 Reporter: Erik Salter The grouping API should be enhanced to add grouping capabilities to a a cache's put() or replace() methods. This encompasses the following scenario: Cache A uses a custom key class where the group is dynamically generated. Cache B's key is an unmodifiable String that needs to be grouped with the dynamic value of a key from Cache A. (Cache B's key can't be encapsulated in a custom key class since it needs to be queried from external entities that will not know the group context). And in pseudo-code: {code} Group class InternalResourceKey { String group; ... @Group String getGroup() { return group; } } InternalResourceKey key = new InternalResourceKey(); {code} ... {code} resourceCache.lock( key ); // Get the previous result. ResourceResult result = resourceCache.get( key ); ResourceResult newResult = doWork( key, result ); resourceCache.put( key, newResult ); // I also want to group an external identifier that an external client knows about with the result so they will be on the same node employeeCache.put( "111-111-1111", newResult, key.getGroup() ); {code}