[jboss-user] [EJB 3.0] - EJB3 delete object error

Hi ALL: I'm newer to JBoss EJB3 and Hibernate. I encountered such a problem:I have a one-to-many relationship between class A and B(A hold a list of B),when i delete one B object(through em.remove(b)),it will raise exception org.hibernate.exception.ConstraintViolationException: could not delete.... I use HSQL as default DB and cascade = CascadeType.ALL,i found that it has generated temp table A_B ,i guess it is because that temp table will refer to table B.Someone can tell me how to resolve this problem?Or just to let Hibernate not generate temp tables? Thanks! Kingofhawks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3964051#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...