Questions tagged [bidirectional-relation]
98 questions
0
votes
2 answers
Hibernate: bi-directional mapping OneToMany does not work
I have three classes as following:
import java.sql.Timestamp;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.EnumType;
import…
LAC
- 852
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1 answer
Should I update bidirectional relation also in Java?
Suppose I have User and Group entities and wish them to have 1 to many relationship between. I.e. each User belongs to one Group, while any Group can contain many Users.
Group entity:
@Entity
@Table(name="GroupTable")
public class Group {
@Id
…
Suzan Cioc
- 29,281
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- 385
0
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1 answer
How do I setup a bi-directional relationship in Hibernate (3.2)?
I'm having trouble setting up a bi-directional relationship in Hibernate (v 3.2.1.g a -- can't upgrade now). I have an object, TrainingSession, which contains many TrainingLink objects. So I have
@Entity
@Table(name = "cb_pd_training_session",
…
Dave
- 15,639
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- 830
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1 answer
Jackson One-to-One serialization
I am looking for a way in Jackson to allow serialization of a relationship depending on the root element. For example, I have a relationship that is not a true parent/child. Both entities can be queried.
Address {
@JsonBackReference
…
SchraderMJ11
- 613
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- 12
0
votes
1 answer
Rails 3: Model with multiple bi-directional relationships to itself
I'm trying to build a text adventure game in Rails 3 (yes I know that's silly). Right now I have a model called Room. Each room needs to be associated with up to four other rooms. This relationship would be bi-directional, such that any two…
Schtev
- 7
- 2
0
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1 answer
bidirectional many-to-many and DAO ended in HibernateException
I'm developing a web based database front-end for school. But I have problems with a many-to-many relationship. When I comment out it my server starts up without problems. Here's the stack trace of the start up.
[java] SCHWERWIEGEND: Exception…
weedlight
- 31
- 7
0
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1 answer
MVC3 Optional Bidirectional relationship code first
What I have is something like
public class BuildingUnit
{
public int ID { get; set; }
*irrelevant stuff removed*
public virtual BuildingUnitInsurance UnitInsurance { get; set; }
}
public class BuildingUnitInsurance
{
public int ID…
Kyle Sawatsky
- 175
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- 10
-1
votes
2 answers
Does NHibernate really deliver transparent persistency
Starting to use Nhibernate for persistency being seduced by the promise that it respects your domain model, I tried to implement a relation manager for my domain objects. Basically, to DRY my code with respect to managing bidirectional one to many…
halcwb
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