PERSIST « Association « JPA Q&A





1. Hibernate, Persistance and delation of associations    stackoverflow.com

I have some problem with delation of associations, this is my code :

Classe ModuleVersion
@ManyToMany(mappedBy="listModuleVersions")
private List<SuiteVersion> suiteVersions = new ArrayList<SuiteVersion>();
Classe SuiteVersion
@ManyToMany()
private List<ModuleVersion> listModuleVersions = new ArrayList<ModuleVersion>();*
I would like ...

2. Associations with a non persistent entity    forum.hibernate.org

Hello everybody! I have a problem with a dynamic model. I have a table with no associated class. This table A is associated with a table B (related to a persistent class) by means of an one-to-many association and with a one-to-one association. I have been looking the Dynamic models section of the page http://docs.jboss.org/hibernate/core/3. ... asses.html , but since no ...

3. transitive persist associations only?    forum.hibernate.org

I have a one-to-many relationship between class Parent and class Child. Child instances can be persisted without a parent (they can be orphaned). I have the following tables (simplified): table 'parent': integer id table 'parent_children': integer parent_id, integer child_id table 'children': integer id However, I have a complex 'child' class and saving/loading involves spanning multiple data sources. As such, I would ...

4. Many-to-Many association fails to persist associative entity    forum.hibernate.org

In my many-to-many association all data relating to the SystemUser is persisted correctly. But no record is added the intermediate table (NM_SYSTEM_USER_ROLE). I've scanned the log for INSERT statements and hibernate doesn't attempt to insert a record into the NM_SYSTEM_USER_ROLE table. Interestingly when I retrieve the added SystemUser, the SELECT statement DOES contain the necessary join. Regarding code - In my ...

5. Persisting many-to-many associations    forum.hibernate.org

I've gone through the FAQ's, read the first 3 chapters of King/Bauer's book and browsed Wrox's Hibernate book but I'm still a little unsure about many-to-many relationships. According to King and Bauer, its better to steer clear of these if possible and instead "use two one-to-many associations for either side....[and use] an intermediate association class." (page 225). In that spirit, Ive ...

6. Association - Applying Criteria to Persistent Collection    forum.hibernate.org

Good day, I hv created Project and ProjectDtl with one-to-many relationship. Each call to oProject.getDetails() will return me a full list of the associated details Currently I hv to use a filter to retrieve the filtered details. I tried the following code and it still return all the details when I call oProject.getDetails(). Code: criteria = createCriteria(); ...

7. Persisting/Synchronizing associations    forum.hibernate.org

Hello: I am very new to hibernate. Will try to describe my problem in very simple terms. May be I am doing something fundamentally wrong. Looking for direction in that respect. I have a three tier application. I have the hibernate (pojo)classes, I have a DAO layer, Service Layer pojos (that map to the hibernate pojos), and the service layer. My ...

9. Persist n associations between two classes.    forum.hibernate.org

Hello, I have one problem persiting this two relations one-to-many : Code: public class Library { //... @OneToMany public Map getOwnerBooks() { return ownerBooks; } @OneToMany public Map





10. Troubles persisting many-to-many association    forum.hibernate.org

RH_GENERIC_SEQ ...