Es fällt mir schwer, Kinder aus einem OneToMany-Verein zu entfernen. Meine Entitäten:

<code>@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;
  ...
</code>

Mein erfolgloser Versuch, die Kinder zu löschen:

<code>personEntity.getProjects().clear();
</code>

Das funktioniert, aber ich denke nicht, dass das der richtige Ansatz ist:

<code>for (Iterator<ProjectEntity> iterator = personEntity.getProjects().iterator(); iterator.hasNext();)
{
  ProjectEntity projectEntity = iterator.next();
  projectDao.deleteEntity(projectEntity);
  iterator.remove();
}
</code>

Was mache ich hier falsch?

Vielen Dank
Jonny