Locking model when pojo is multiple referenced ---------------------------------------------- Key: JBCACHE-173 URL: http://jira.jboss.com/jira/browse/JBCACHE-173 Project: JBoss Cache Issue Type: Task Security Level: Public(Everyone can see) Components: PojoCache Affects Versions: POJOCache Reporter: Ben Wang Assigned To: Ben Wang Fix For: 2.0.0 Original Estimate: 2 weeks Remaining Estimate: 2 weeks Under the new PojoCache, when a pojo is multiple referenced (let's say a pojo, Joe), it will be located under JBOSS_INTERANL node while leaving the original with a fqn/id reference. In terms of locking, there are various implications. 1. If we are modifying Joe under a tx context directly, the locking will be done under the JBoss_INTERNAL node. As a result, consistency is warranted. 2. If Joe is part of a sub-object, say, a UserState object that has a Person Joe reference. Then, a tx context under that UserState obejct is not locking on Joe (since it has been moved to under JBOSS_INTERNAL, and therefore not under the same fqn sub-tree).