Against each process instance I store N variableInstance values. I need to query to retrieve the process instances, joining with multiple variableInstances (E.g get me all process instances where they have a variableinstance of 'doctype=foo' and a variable instance of 'owner=bar'). This is possible with HQL and joins, however I need to use Hibernate Criteria to allow better dynamic search building. Looking at the Hibernate mappings, ProcessInstance has a Map to VariableInstance. However, VariableInstance has no reverse mapping to ProcessInstance, even though the table contains a FK to it. Is this an oversight on the mappings or was there a reason for this? If there is no valid reason not to have it then is it worth raising a JIRA (No JIRA for this is currently raised). Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4036314#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...