1. Hibernate Many-to-many using link table coderanch.comI just inherited a project where none of the original developers are available. It is half baked and I was hired to finish it. With that said, I am looking for a couple of things: First, for a simple working example of how to map a unidirectional many-to-many relationship using a link table in-between preferably using struts. Second, some specific clues ... |
2. [SOLVED] Simple link table not being populated forum.hibernate.orgBeginner Joined: Thu Mar 27, 2008 8:49 am Posts: 24 I seemed to have this working for a couple of minutes but then I re-factored the code and can't get it working again. I don't have any idea why it stopped working but I am completely stuck on it at the moment. I will mention that I am using Spring to ... |
3. i net use a bd link, with :table forum.hibernate.org |
4. many-to-many and the link table woes forum.hibernate.orgI'm trying to implement a simple many-to-many relationship. My test application has two objects: a Service, and a Location. Obviousely, some random Service can be performed at no, one or an arbitrary number of locations. Now, I want to have a set in the Service class that represents all of the Locations where this Service can be performed. Here's the relevant ... |
5. Many to Many through two link tables forum.hibernate.orgI have the following Tables in my database: Person Category Person_Category Category_Content Content A Person has a many to many relationship to Categories. A Category has a many to many relationship to Content. Therefore a Person has a many to many relationship to Content. I would like to design my objects w/o creating a Category Object. I would like a collection ... |
6. link table forum.hibernate.orgHibernate version: 2.1 Hi I am using Hibernate 2.1 and have a question about a link table. I have tables EMPLOYEE, TASK and EMPLOYEE_TASK. The EMPLOYEE_TASK is a link table between EMPLOYEE and TASK. One employee can have many tasks and one task is allocated to many employees. If I get an object EMPLOYEE, do I need to fetch all its ... |
7. Need Information while Commiting Link Tables forum.hibernate.org |
8. many-to-many link table forum.hibernate.orgUsing many-to-many mapping directly is not recommended to represent a many-to-many relationship between tables. Even though you are not doing the wrong thing but customization like adding more columns to the join table or updation requires something more detailed and specific. So instead of mapping two tables directly to one another with many-to-many mapping you should use a combination of two ... |
9. Link table forum.hibernate.orgI use Hibernate with annotations: - A Team has a number of members (OneToMany) - I use a link table (team_members) to link a team and its members Everything goes well, until I also register (annotatedClasses) the link table as a separate class too (to be able to add properties to the link table). I get an exception: "java.sql.BatchUpdateException: failed batch" ... |
10. one-to-many using link table??? forum.hibernate.orghello every one... i have used hibernate in some projects before and when i want to map a bidirectional one-to-many association i use a set and a foreign key, cascading (all-delete orphan) and inverse=true. I have read somewhere ( "Beginning hibernate, From novice to professional", Apress, p.87-88 ) , that i can use a link table to maintain a one-to-many association ... |