[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-2392) LockModes referencing non-root joined-subclass class in HQL/Criteria

LockModes referencing non-root joined-subclass class in HQL/Criteria --------------------------------------------------------------------- Key: HHH-2392 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2392 Project: Hibernate3 Type: Bug

Components: core Environment: dialects supporting FOR UPDATE OF construct (Dialect.forUpdateOfColumns() == true) Reporter: Steve Ebersole Assignee: Steve Ebersole Fix For: 3.2.3

When setting a LockMode to an HQL or Criteria query where the lock applies to a non-root subclass in a joined-subclass hierarchy, the result is incorrect on dialects which support the FOR UPDATE OF construct. The problem is that logically, the root table should be locked; however, the "driving" table is instead locked currently. For example, consider: Person | ----------------- | | Employee Customer For queries against Employee requesting that Employee be locked, the physical DB lock should actually be applied to the Person table!