I'm getting a TransientObjectException when executing a query:

Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing

My criteria has an object reference that is unsaved, true, but I'm using it to query with. I don't want to save it to the database at all. The query is much like the findByExample, except I'm including an Order-by clause.

Any thoughts?

Hi,

If you want to pass your entity into the query, you should make sure that your entity is saved, because hibernate will compare the primary key in your entity, unless you use findByExample

I understand, but I can't use findByExample because it lacks the order-by. I'm using it to make me it a bit easier to query with - instead of having to write out the full where clause. I was hoping for a workaround.

Actually, the criteria allows to add an Example. However, it doesn't work on subclasses when there's a discriminator in play. To me, this seems an omission in Hibernate.

Hibernate flushes the session before executing queries. So if there are any objects in your session pointing to transient istances, this exception is thrown.