eager « Map « JPA Q&A

1. Hibernate: Overriding mapping's EAGER in HQL?    stackoverflow.com

It's possible to override LAZY in HQL using LEFT JOIN FETCH.

FROM Obj AS obj LEFT JOIN FETCH obj.otherObj WHERE obj.id = :id
Is it also possible to override EAGER? How?

2. Crux of child collection eager fetching with restrictions    forum.hibernate.org

This seems not to be a very new problem, but still an unsolved one. As mentioned in the following topic: http://forums.hibernate.org/viewtopic.p ... e2db7ed39d "If you have a 1:n relation between tables A and B, and you add a restriction to B and want to fetch A and B eagerly, the question would be what happens when you want to navigate from ...

3. ManyToOne Lazy/Eager and Inheritance    forum.hibernate.org

I have come across the same problem using Hibernate and AMF. my workaround was to write a little class that makes a clone of the original object graph using BeanUtils which then gave me a clean copy of the original object without all the "_$$_" stuff. Seems to be working fine so far.

4. Design issues - lazy/eager mapping    forum.hibernate.org

Hey, Lets say I have an Hotel with one to one relation to Room and Room has one to one relation to RoomDetails. When I ask for hotel - the roomDetails are useless, so the relation between room to roomDetails should be lazy. Yet, when I ask for room, the roomDetails are needed, so the relation should be eager. This example ...

5. OneToOne mappings always eager fetch even when set to LAZY    forum.hibernate.org

Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3.2 Hi, I have two entity classes that have a one-to-one relationship. This is how I have them mapped: Code: @Entity public Person { private Student student; @OneToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY, optional = true) @JoinColumn(name = ...

6. Eager fetching nested child tables with Criteria API    forum.hibernate.org

Newbie Joined: Wed Jan 17, 2007 4:07 pm Posts: 3 I have 4 tables and I would like to retrieve data from all 4 using eager fetching. I am using the Criteria API, so that eager fetching can be performed dynamically. The entity classes and mapping files are found below. Two tables, Applications and Accounts, are many to many relationships with ...

7. Eagerly fetching one side of a ManyToMany    forum.hibernate.org

First of all, THANK YOU FOR REMOVING THE CREDITS SYSTEM ON THE FORUM! Thank you thank you thank you... I'm using the latest GA of Hibernate Core, Hibernate Annotations, etc. and I need to know if this is possible. I need to eagerly fetch one side of a many to many relationship. I am using Hibernate to persist objects which are ...