Package de.mhus.lib.jpa

Examples of de.mhus.lib.jpa.JpaEntityManager


    BookStoreSchema schema = new BookStoreSchema();
    prop.setSchema(schema);
   
    JpaManager manager = new JpaManager(prop);
   
    JpaEntityManager em = manager.createEntityManager();
   
    em.begin();
   
    Book book1 = new Book();
    book1.setName("Oh wie schoen ist Panama");
    em.persist(book1);
   
    Book book2 = new Book();
    book2.setName("Sofies Welt");
    em.persist(book2);
   
    em.commit();
   
    System.out.println("ID: " + book1.getId() );
    System.out.println("ID: " + book2.getId() );
   
    assertNotSame(book1.getId(), book2.getId());

    Book foundBook = em.find(Book.class, book1.getId());
   
    assertSame(book1.getName(), foundBook.getName());
   
    assertSame(book1, foundBook);
   
    Book copyBook1 = em.copy(book1);
   
    assertSame(book1.getName(), copyBook1.getName());
   
    assertTrue(book1 != copyBook1);
   
    // assertTrue(foundBook.is)
   
    {
      JpaQuery<Book> query = em.createQuery("select b from Book b", Book.class);
     
 
      List<Book> list = query.getResultList();
     
      assertTrue(list.size() == 2);
     
      for ( Book res : list) {
        System.out.println("RES: " + res.getId() + " " + res.getName());
      }
    } 
   
    em.begin();
   
    Person p1 = em.injectObject(new Person());
    p1.setName("Kurt Cobain");
    p1.save();
   
   
    Person p2 = em.injectObject(new Person());
    p2.setName("Lola Langohr");
    p2.save();
   
    em.commit();
   
    {
      JpaQuery<Person> query = em.createQuery("select p from Person p", Person.class);
      List<Person> list = query.getResultList();
      assertTrue(list.size() == 2);
     
      for ( Person res : list) {
        System.out.println("RES: " + res.getId() + " " + res.getName());
      }
    }
   
    em.begin();
    p2.remove();
    em.commit();
   
    {
      JpaQuery<Person> query = em.createQuery("select p from Person p", Person.class);
      List<Person> list = query.getResultList();
      assertTrue(list.size() == 1);
     
      for ( Person res : list) {
        System.out.println("RES: " + res.getId() + " " + res.getName());
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