Usuwanie potomków z asocjacji @ OneToMany: CascadeType.ALL + orphanRemoval = true nie działa
Trudno mi usunąć dzieci ze stowarzyszenia OneToMany. Moje podmioty:
@Entity
@Table(name = "PERSON")
public class PersonEntity extends BaseVersionEntity<Long> implements Comparable<PersonEntity>
{
...
// bi-directional many-to-one association to Project
@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "person", orphanRemoval = true)
private final Set<ProjectEntity> projects = new HashSet<ProjectEntity>();
...
@Entity
@Table(name = "PROJECT")
public class ProjectEntity extends BaseVersionEntity<ProjectPK>
{
@EmbeddedId
private ProjectPK id;
...
// bi-directional many-to-one association to UdbPerson
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "PERSON_ID", nullable = false, insertable = false, updatable = false)
private PersonEntity person;
...
@Embeddable
public class ProjectPK implements Serializable
{
// default serial version id, required for serializable classes.
private static final long serialVersionUID = 1L;
@NotNull
@Column(name = "PERSON_ID")
private Long personId;
...
Moja nieudana próba usunięcia dziecka:
personEntity.getProjects().clear();
To działa, ale nie sądzę, że to właściwe podejście:
for (Iterator<ProjectEntity> iterator = personEntity.getProjects().iterator(); iterator.hasNext();)
{
ProjectEntity projectEntity = iterator.next();
projectDao.deleteEntity(projectEntity);
iterator.remove();
}
Co ja tu robię źle?
Dzięki
Jonny