I am having trouble when removing an item from a list. The list is defined in a superclass, but the Hibernate annotations are applied to property accessors in a subclass. There are two methods in the superclass that manipulate the list. The "add" method works fine, but the "remove" does not persist changes. I have checked my Cascade settings, and I seem to have things correct. Am I doing something that is impossible. If not, am I doing something incorrectly?
I have two classes such as this:
Code:
@Entity
abstract class Temporal<T> {
@Id
@GeneratedValue
private Long id;
@Version
private Integer version = null;
@Transient
protected List<T> content = new ArrayList<T>();
public void remove(T value) {
// business logic ...
content.remove(value);
}
public void add(T value) {
// business logic ...
content.add(value);
}
}
@Entity
@AccessType("property")
class TemporalAsset extends Temporal<Asset> {
@OneToMany(cascade = CascadeType.ALL, mappedBy = "temporal")
public List<Asset> getContent() {
return super.content;
}
protected void setContent(List<Asset> list) {
super.content = list;
}
}
I use an instance of the TemporalAsset class as follows:
Code:
temporalAsset.add(value1);
temporalAsset.getContent().size() == 1; // true
session. update(temporalAsset);
session.refresh(temporalAsset);
temporalAsset.getContent().size() == 1; // true
temporalAsset.remove(value1);
temporalAsset.getContent().size() == 0; // true
session.update(temporalAsset);
session.refresh(temporalAsset);
temporalAsset.getContent().size() == 0; // false, its 1
Thanks.
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