Hi there,
I have two tables: user and roles. A user can have associated many roles, and this relationship is unidirectional. I want the roles to be fetched automatically, i tried using lazy="false" but that didn't work.
How can I set lazy to false for a many-to-many unidirectional relationship?
Thanks in advance!

Hibernate version: 3.2.6ga

Mapping documents:

Snippet of my User table mapping file (it doesn't work as I expected):


Full stack trace of any exception that occurs:
org.hibernate.LazyInitializationException: could not initialize proxy - no Session

Name and version of the database you are using: MySQL

The error is not related to initializing the <bag> with roles. It seems that it is related to initializing the proxies of the role entities themselves. You may try:



If that doesn't work you may need to disable proxies for the role entity:

Thanks, it worked! I did:


but I don't get it... why it doesn't work when I set lazy="false" in <bag..> and in <many-to-many> tags?? I mean:

It probably has something to do with that there is a difference between collection initialization and proxy initialization. Setting <bag lazy="false"> means that the collection will be initialized but it may be initialized with proxies. I hoped that <many-to-many .... fetch="join" /> would also initialize the proxies, but maybe it doesn't. It would be quite useful to keep the <class lazy="true"> but still has the option to override this for a specific collection.