Hi All,
I've been playing with Appfuse/Spring WebMVC/Hibernate and made a change
to the base User object. I added a many-to-one reference to an
Organization object. Everything works fine in my unit tests for
creating a user, setting its organization property, and saving it. The
problem comes in when I do all of that across transactions while running
the webapp. I have a property editor for setting the user's
organization after the form is submitted. The property editor calls the
orgDao to load the organization based off the passed in orgID. When I
perform the userDao.save(user) I get this exception message:
org.hibernate.TransientObjectException: object references an unsaved
transient instance - save the transient instance before flushing:
tutorial.model.Organization
I was able to setup a unit test that reproduces the problem:
User user = userDao.get(-1L);
assertEquals(-1L, user.getOrganization().getId());
user.setOrganization(orgDao.get(-1L));
endTransaction();
dao.save(user);
Though the organization already exists in the database, the transient
exception is thrown. If I remove the endTransaction() statement, the
save() is successful. My annotations for the organization field in the
user object looks like:
@ManyToOne
@JoinColumn(name = "OrganizationID", nullable = false)
public Organization getOrganization()
The organization object has no references to users and simply consists
of ID, Name, and Version properties. I have provided toString(),
hashCode(), and equals() for the organization object.
Does anyone have any insight or ideas I can try to fix this problem? I
REALLY appreciate any help that can be provided!
Thanks,
-Mike
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