I have two entities, an entity "movie" and an entity "Clip" each clip belongs to one movie and a movie can have multiple clips. My code looks like: Movie.java @OneToMany(mapped...

I am getting an error: Don't change the reference to a collection with cascade="all-delete-orphan" while trying the following operation: beginTx(); Parent parent = new Parent(); Child child =...

Why hibernate uses a join table for these classes? @Entity public class CompanyImpl { @OneToMany private Set<Flight> flights; @Entity public class Flight { I don't want neither a join ...

My problem is that hibernate retrieve null in the value of the @OneToMany Set organizationMemberCollection when fetching an instance on the following object : UserAccount.java : @Entity @Table(n...

I've come across a few good possible answers to my questions, but this is regarding an upgrade from Hibernate 3.4.0GA to Hibernate 4.1.8. So this used to work under the previous version and I've se...

In my application I use JPA 2.0 with Hibernate as the persistence provider. I have a one-to-many relationship between two entities (using a @JoinColumn and not @JoinTable). I wanted to know how cou...

I have a Many-to-Many relationship between the class Foo and Bar. Because I want to have additional information on the helper table, I had to make a helper class FooBar as explained here: The best ...

I am working on a legacy code base with an existing DB schema. The existing code uses SQL and PL/SQL to execute queries on the DB. We have been tasked with making a small part of the project databa...

I'm working on legacy system, need to read some of the info from database. Below are the table relationship Vendor (vendorId - pk, vendorEid, name) VendorContactBridge (bridgeId -pk, vendorEid, c...