Michael Wohlfart [http://community.jboss.org/people/mwohlf] created the discussion "Re: Removing history information of completed process instances" To view the discussion, visit: http://community.jboss.org/message/568808#568808 -------------------------------------------------------------- in jbpm4 the DbSessionImpl has a deleteProcessDefinitionHistory() method, you can use that as base for whatever history information you want to delete:    List<HistoryProcessInstanceImpl> historyProcessInstances = session             .createCriteria(HistoryProcessInstanceImpl.class)             .add(Restrictions.eq("processDefinitionId", processDefinitionId))             .add(... insert random other Restriction here ...)             .list();     // you also have to delete the activity since they have a foreign key relationship     for (HistoryProcessInstanceImpl hpi : historyProcessInstances) {       List<HistoryActivityInstanceImpl> historyActivityInstances = session               .createCriteria(HistoryActivityInstanceImpl.class)               .add(Restrictions.eq("historyProcessInstance", hpi))               .list();       for (HistoryActivityInstanceImpl hai : historyActivityInstances) {         session.delete(hai);       }       session.delete(hpi);     } -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/568808#568808] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]