Package com.google.appengine.datanucleus.test.jpa.UnidirectionalOneToManySubclassesJPA

Examples of com.google.appengine.datanucleus.test.jpa.UnidirectionalOneToManySubclassesJPA.SubChild

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  public void testSubParentWithSubChild() throws EntityNotFoundException {
    // insertion
    SubParentWithSubChild parent = new SubParentWithSubChild();
    parent.setSuperParentString("super parent string");
    parent.setSubParentString("sub parent string");
    SubChild subChild = new SubChild();
    subChild.setAString("a string");
    subChild.setBString("b string");
    parent.getSuperParentSubChildren().add(subChild);

    beginTxn();
    em.persist(parent);
    commitTxn();
    Entity parentEntity =
        ds.get(KeyFactory.createKey(kindForClass(parent.getClass()), parent.getId()));
    Entity superParentSubChildEntity = ds.get(subChild.getId());
    assertEquals(3, parentEntity.getProperties().size());
    assertEquals("super parent string", parentEntity.getProperty("superParentString"));
    assertEquals("sub parent string", parentEntity.getProperty("subParentString"));
    assertEquals(Collections.singletonList(superParentSubChildEntity.getKey()), parentEntity.getProperty("subChildren"));
    assertEquals(2, superParentSubChildEntity.getProperties().size());
    assertEquals("a string", superParentSubChildEntity.getProperty("aString"));
    assertEquals("b string", superParentSubChildEntity.getProperty("bString"));

    // lookup
    beginTxn();
    parent = em.find(parent.getClass(), parent.getId());
    assertEquals("super parent string", parent.getSuperParentString());
    assertEquals("sub parent string", parent.getSubParentString());
    assertEquals(1, parent.getSuperParentSubChildren().size());
    assertEquals(subChild.getId(), parent.getSuperParentSubChildren().get(0).getId());
    commitTxn();

    beginTxn();
    subChild = em.find(subChild.getClass(), subChild.getId());
    assertEquals("a string", subChild.getAString());
    assertEquals("b string", subChild.getBString());
    commitTxn();

    // cascade delete
    beginTxn();
    em.remove(em.merge(parent));
    commitTxn();

    assertEquals(0, countForClass(parent.getClass()));
    assertEquals(0, countForClass(subChild.getClass()));
  }
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  public void testSuperParentWithSubChild() throws EntityNotFoundException {
    // insertion
    SuperParentWithSubChild parent = new SuperParentWithSubChild();
    parent.setSuperParentString("super parent string");

    SubChild subChild = new SubChild();
    subChild.setAString("a string");
    subChild.setBString("b string");
    parent.getSuperParentSubChildren().add(subChild);

    beginTxn();
    em.persist(parent);
    commitTxn();
    Entity parentEntity =
        ds.get(KeyFactory.createKey(kindForClass(parent.getClass()), parent.getId()));
    Entity superParentSubChildEntity = ds.get(subChild.getId());
    assertEquals(2, parentEntity.getProperties().size());
    assertEquals("super parent string", parentEntity.getProperty("superParentString"));
    assertEquals(Collections.singletonList(superParentSubChildEntity.getKey()), parentEntity.getProperty("subChildren"));

    assertEquals(2, superParentSubChildEntity.getProperties().size());
    assertEquals("a string", superParentSubChildEntity.getProperty("aString"));
    assertEquals("b string", superParentSubChildEntity.getProperty("bString"));

    // lookup
    beginTxn();
    parent = em.find(parent.getClass(), parent.getId());
    assertEquals("super parent string", parent.getSuperParentString());
    assertEquals(1, parent.getSuperParentSubChildren().size());
    assertEquals(subChild.getId(), parent.getSuperParentSubChildren().get(0).getId());
    commitTxn();

    beginTxn();
    subChild = em.find(subChild.getClass(), subChild.getId());
    assertEquals("a string", subChild.getAString());
    assertEquals("b string", subChild.getBString());
    commitTxn();

    // cascade delete
    beginTxn();
    em.remove(em.merge(parent));
    commitTxn();

    assertEquals(0, countForClass(parent.getClass()));
    assertEquals(0, countForClass(subChild.getClass()));
  }
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  }

  public void testWrongChildType() {
    SuperParentWithSuperChild parent = new SuperParentWithSuperChild();
    parent.setSuperParentString("a string");
    SubChild child = new SubChild();
    parent.getSuperParentSuperChildren().add(child);

    beginTxn();
    em.persist(parent);
    try {
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    em.persist(parent);
    commitTxn();

    beginTxn();
    parent = em.find(parent.getClass(), parent.getId());
    SubChild child = new SubChild();
    parent.getSuperParentSuperChildren().add(child);

    try {
      commitTxn();
      fail("expected exception");
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Related Classes of com.google.appengine.datanucleus.test.jpa.UnidirectionalOneToManySubclassesJPA.SubChild

  • com.google.appengine.datanucleus.jpa.JPAUnidirectionalOneToManySubclassTest
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