I doo not understand the meaning of LAZY and EAGER exactly. I have a problem to deploy 2 entities bean with one to many relaionship. On the one side, default vaule of fetchtype is lazy. And i have a problem with this message on JBOSS 4.2.1 "org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: ejb3.Member.spreadsh eets, no session or session was closed"
If i change the fatchtype to eager on the one side.. another problem is happened javax.persistence.PersistenceException: org.hibernate.HibernateException: cannot simultaneously fetch multiple bags
|A| 1 ..* |B| 1..* |C|
how should i fix this? and what is exact meaning of fetch? cheers
Joined: Sep 03, 2007
For future references with the problem "cannot simultaneously fetch multiple bags" it seems like a hibernate bug. Check these links: