1. How to handle deletion of many JPA entities which has foreign key relationships stackoverflow.comProblem: Entities (say Users) are showed in a paginated fashion in the UI. The UI also shows a checkbox against each entity, so that it is possible for the admin to ... |
2. hibernate cascading delete, why not one delete on the foreign key? stackoverflow.comI'm wondering why hibernate generates 1 delete per entity on a child table instead of using one delete on the foreign key Here's the hibernate.cfg.xml (No i's not the next SO :-t |
3. how can we use foreign key when deleting data in hibernate stackoverflow.comI have two tables which are refered by foreign key... I will delete the data from first table using primary key...and also i want to delete that refered data from second table ... |
4. Foreign key on delete cascade using link table (one-to-one) forum.hibernate.orgI need to have a link table that maps the ID of two classes that are persisted differently since they're used by two different programs. Class A is in the Java/JBoss/Javax/Hibernate domain while class B is used in the C++ domain and persisted by using DB access classes (class B is though realized on the Java side also in order for ... |
5. cascading delete, why not one delete on the foreign key ? forum.hibernate.orgI'm wondering why hibernate generates 1 delete per entity on a child table instead of using one delete on the foreign key Here's the hibernate.cfg.xml for this toy project Code: |
6. Cannot delete or update a parent row: a foreign key... forum.hibernate.orgHi, I am trying to update an entity called EntityOne followed by a series of delete's on another entity called EntityTwo. EntityTwo has a FK to EntityOne. While I do this operation within a same session(Spring managed OpenSessionInView) I get: Quote: Cannot delete or update a parent row: a foreign key constraint fails 1. I first save EntityOne 2. I then ... |
7. Many-to-many, foreign keys and delete forum.hibernate.orgNewbie Joined: Tue Nov 18, 2003 11:56 am Posts: 16 I can't figure out how to set up the mapping for a many-to-many relation when the many table in my database has foreign keys. What I want is a many-to-many bidirectional relation between User and Role. The problem is that I get a exception (see below) with the message "Cannot delete ... |
8. Database-side foreign key on delete/update cascade (etc)? forum.hibernate.orgHello all, I have been digging in the docs for a long time now and I don't think I have got a satisfactory answer to a question which at least to me seems rather basic and central... How well does Hibernate coexist with database-side "data-altering" foreign key constraints, say, an on delete cascade? I am building an app where the database ... |
9. session.delete(parent), foreign key violated forum.hibernate.orgHi, I have a Parent class which has a one-to-many Set of Children defined in the hbm file. In the hbm file of the Child, there is NO many-to-one relationship, as I don't have the need for a bi-directional relationship. In the (Oracle) database, the child table has a not-null foreign key to the parent table, along with a cascading delete ... |
10. Cascading delete with Foreign Key rel. among cascading items forum.hibernate.orgWe have a one-many relationship where the "many" items are dependent on each other, and we are using cascading delete to remove the "many" when the "one" is deleted. E.g. We have a Shape object with a set of Points. One point is the "referencePoint" for another point. If we delete the shape we want to cascade the delete to the ... |
11. auto deletion of foreign key records when deleting record forum.hibernate.orgHi I am working with Hibernate 3.1 and have the following doubt: I have two tables, A and B. B holds a field with foreign key to table A. Is there a way to tell hibernate that when a request comes to delete a record from A, it will delete all records from B with the matching foreign key first? I ... |
12. Problem with foreign-key / cascade delete with many-to-many forum.hibernate.orgHibernate version: 3.2.6.ga Hi, I have two classes with an unidirectional many-to-many relation, the relation is stored in a separate table: Code: |
13. Delegate cascade delete on foreign key to underlying RDBMS? forum.hibernate.orgAre you using hibernate core or annotations? I've been able to achieve this with annotations, using the @OnDelete annotation. I'm sure there's an equivalent in hbm mapping files. However, I did notice the following: In one-to-many, the @OnDelete was declared on the non-owning side of the relationship (i.e. the parent). For example, in a company-employee relationship, I declared it in company. ... |
14. Bulk Delete with On Cascade Delete on DB Foreign Key forum.hibernate.orgHello, I use MySQL 5.0 and Hibernate Core 3.3.1.GA, Hibernate Tools 3.2.4 GA and Hibernate Annotation 3.4.0. My requirement is to be able to delete an Object tree without navigating it. Therefore I looked in the dml deletes in the documentation. Here is my query: Code: int dailyDataDeleted = getSession().createQuery("delete from DailyData as dbd where dbd.day between '2009-06-01' and '2009-06-05').executeUpdate(); My ... |