Ejemplo n.º 1
0
  @Test
  @Priority(10)
  public void initData() {
    // Revision 1 - Create indexed entries.
    TransactionUtil.doInJPA(
        this::entityManagerFactory,
        entityManager -> {
          Parent p = new Parent(1);
          p.addChild(new Child(1, "child1"));
          p.addChild(new Child(2, "child2"));
          entityManager.persist(p);
          p.getChildren().forEach(entityManager::persist);
        });

    // Revision 2 - remove an indexed entry, resetting positions.
    TransactionUtil.doInJPA(
        this::entityManagerFactory,
        entityManager -> {
          final Parent p = entityManager.find(Parent.class, 1);
          // should remove child with id 1
          p.removeChild(p.getChildren().get(0));
          entityManager.merge(p);
        });

    // Revision 3 - add new indexed entity to reset positions
    TransactionUtil.doInJPA(
        this::entityManagerFactory,
        entityManager -> {
          final Parent p = entityManager.find(Parent.class, 1);
          // add child with id 3
          final Child child = new Child(3, "child3");
          p.getChildren().add(0, child);
          child.getParents().add(p);
          entityManager.persist(child);
          entityManager.merge(p);
        });

    // Revision 4 - remove all children
    TransactionUtil.doInJPA(
        this::entityManagerFactory,
        entityManager -> {
          final Parent p = entityManager.find(Parent.class, 1);
          while (!p.getChildren().isEmpty()) {
            Child child = p.getChildren().get(0);
            p.removeChild(child);
            entityManager.remove(child);
          }
          entityManager.merge(p);
        });
  }
Ejemplo n.º 2
0
 public void removeChild(Child child) {
   child.getParents().remove(this);
   getChildren().remove(child);
 }
Ejemplo n.º 3
0
 public void addChild(Child child) {
   child.getParents().add(this);
   getChildren().add(child);
 }