[jbpm-issues] [JBoss JIRA] Resolved: (JBPM-2031) Some bidirectional associations do not use inverse="true"

Some bidirectional associations do not use inverse="true" --------------------------------------------------------- Key: JBPM-2031 URL: https://issues.jboss.org/browse/JBPM-2031 Project: jBPM Issue Type: Bug Security Level: Public(Everyone can see) Components: Runtime Engine Affects Versions: jBPM 3.3.1 GA, jBPM 3.2.9 Environment: Tested with MySQL with query log enabled in JUnit. Reporter: Tomasz Wysocki Assignee: Alejandro Guizar Priority: Critical Fix For: jBPM 3.2.10 Original Estimate: 0 minutes Time Spent: 2 hours, 30 minutes Remaining Estimate: 0 minutes Currently couple of bidirectional associations do not use inverse="true" on one-to-many side (collection) The examples are - ProcessInstance.instances - CompositeLog.children I'm sure there are more of them. Lack of inverse="true" results in additional "UPDATE" statement being issued by hibernate to create a relationship from a one-to-many side. This is not necessary when java code is updating both ends of an association. Some use-cases where lots of new processes are being created would see a performance improvement. CompositeLog logging overhead will decrease (only INSERT will be issued - no UPDATE) Please consider reviewing all of your bidirectional associations with respect to this optimization.