persist « Relationship « JPA Q&A

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1. How do you remove rows after changing the item in a JPA OneToOne relationship?    stackoverflow.com

How do you get a OneToOne item to automatically remove with JPA/Hibernate? I would expect simply setting the OneToOne item to be null in the class that contains would be ...

2. JPA Definition of a One-To-Many Relationship with Junction Table    stackoverflow.com

I have a one-to-many relationship modeled using an extra table: 

create table t1 (id int primary key, name varchar(10) /*...*/);
create table t2 (id int primary key, name varchar(10) /*...*/);
create table t1_t2 (t1_id ...

3. JPA - Persisting a One to Many relationship    stackoverflow.com

Maybe this is a stupid question but it's bugging me. I have a bi-directional one to many relationship of Employee to Vehicles. When I persist an Employee in the database for the ...

4. Properly Implementing a One to Many Unidirectional Relationship in Hibernate    stackoverflow.com

I'm trying to learn how to use Hibernate to implement Java Object Persistence. Specifically, I'm trying to figure out how to implement a unidirectional one to many mapping. I've ...

5. JPA One To Many Relationship Persistence Bug    stackoverflow.com

I've got a really weird problem with a bi-directional relationship in jpa (hibernate implementation). A User is based in one Region, and a Region can contain many Users. So...relationship is as follows: Region ...

6. Entity relationships design with JPA2    stackoverflow.com

I have two entities, User and UserSetting. The obvious relationship between these two has User as the first rate entity which contains a set / list of UserSettings so when a ...

7. JPA - One to One relationship with shared primary key among multiple tables    stackoverflow.com

Consider the below example: I have 3 tables: Fruit, Orange and Apple id is generated in fruit table and is the primary key here id is also primary key for Orange and Apple (shared ...

8. Relationship between persistence and ormapping    stackoverflow.com

I'm learning JPA/Hibernate and I got to wondering: is ormapping a subset of persistence, is it the other way around, or are they (theoretically) two separate concerns? It seems that, at least ...

9. Persist problem on parent relationship entity    forum.hibernate.org

Dear All, I get stuck on this persist problem for a few day. Hope some one can help me here. I'd a class "BorrowOut" to keep tracking which books have been borrowed Out. Since it's a unidirection relationship, I'm not necesary to use the book to get the borrowOut information. I design my models as follow. In entity BorrowOut Code: @Entity ...