1. depth of outer join fetch forum.hibernate.orgI believe that outer join fetches only get go to a depth of one. That is if class A has a set of class B and class B has a set of type C then I can get all of A's set B using an outer join but I won't be able to get all the B's sets C using an ... |
2. Fetch depth forum.hibernate.org |
3. hibernate.max_fetch_depth forum.hibernate.orgI have a question about Hibernate's max_fetch_depth property. My understanding of the property is that it will limit the number of tables that Hibernate will query in an outer join. So, for example, if I have: table CUSTOMER { CUSTOMER_ID, CUSTOMER NAME, CUSTOMER_COUNTY_ID (references COUNTY_ID) } table COUNTY { COUNTY_ID, COUNTY_NAME, COUNTY_STATE_ID (references STATE_ID) } table STATE { STATE_ID, STATE_NAME } ... |
4. max_fetch_depth confusion forum.hibernate.org"Maximum fetched Graph depth" is not necessarily the same as "maximum number of outer joins". If fetching 3 objects deep, you may still get more than 3 outer joins, for example if you have joined-subclass mappings. 3 is a sensible default, because if you fetch deeper, the fetched result sets get really large ... |
5. How does max_fetch_depth affect PropertyAccessExceptions? forum.hibernate.orgHi, I am having some bad luck trying to figure out how and why I will get PropertyAccess Exceptions on differnet occasions, and on different configurations. On our setup we have a small cluster of machines running an app built on top of SpringFramework. We just took TreeCacheProvider into production and witnessed strange problems, getting null pointer exceptions in places where ... |
6. About the fetch depth forum.hibernate.orgSuppose both the association from Category to Item and from Item to Bid are one-to-many. I declare outer-join="true" for both associations and load a single Category. I think Hibernate should execute only one query, but it do two. Then, I think the problem lies in the global fetch depth. Thoug I set the global fetch depth to 4, the result is ... |
7. Fetch Depth forum.hibernate.org[b]Mapping documents:[/b] |
8. Question about fetch depth forum.hibernate.orgI have an HQL query that I'm doing a join fetch to get an association, but how do I go deeper down the chain of associations in one query? Since HQL ignores the mapping "join" settings, can I somehow specify fetch depth in the query? BTW, I'm using HQL because I'm using "distinct" and found this to be the easiest way. ... |
9. Dynamic Fetch Depth? Any plans to include on find() queries forum.hibernate.org |
10. General question about fetch depth and eager fetching. forum.hibernate.orgThis is just a general question about hibernate capability. If one had a series of objects with the following relationship scenerio: A has many to one to B which has a many to one to C which has many to one to D which has many to one to E and the fetching for all these associations is set to eager ... |