Examples of org.joda.time.DateMidnight

org.joda.time.DateMidnight
DateMidnight defines a date where the time component is fixed at midnight. The class uses a time zone, thus midnight is local unless a UTC time zone is used.
It is important to emphasise that this class represents the time of midnight on any given day. Note that midnight is defined as 00:00, which is at the very start of a day.
This class does not represent a day, but the millisecond instant at midnight. If you need a class that represents the whole day, then an {@link Interval} ora {@link LocalDate} may be more suitable.
This class uses a Chronology internally. The Chronology determines how the millisecond instant value is converted into the date time fields. The default Chronology is ISOChronology which is the agreed international standard and compatable with the modern Gregorian calendar.
Each individual field can be queried in two ways:
- getDayOfMonth()
- dayOfMonth().get()
The second technique also provides access to other useful methods on the field:
- numeric value
- text value
- short text value
- maximum/minimum values
- add/subtract
- set
- rounding
DateMidnight is thread-safe and immutable, provided that the Chronology is as well. All standard Chronology classes supplied are thread-safe and immutable. @author Stephen Colebourne @since 1.0

        AutoDiscoveredExcludedDao.class.getName() + " must have been skipped");
  }


  @Test
  public void testDao() {
    final Book book = new Book("AutoDiscoveredDaoTest", new DateMidnight());
    sessionFactory.getCurrentSession().save(book);
    final List<Book> books = dao.findBooks();
    Assert.assertEquals(books, Collections.singleton(book));
  }

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  @Resource
  private SessionFactory sessionFactory;


  @Test
  public void testDao() {
    final Book book = new Book("SpringNamespaceTest", new DateMidnight());
    sessionFactory.getCurrentSession().save(book);
    final List<Book> books = dao.findBooks();
    Assert.assertEquals(books, Collections.singleton(book));
  }

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  @Resource
  private SessionFactory sessionFactory;


  @Test
  public void testJoda() {
    final DateMidnight date = new DateMidnight(1970, 1, 1);
    final Book book = new Book("SpringNamespaceTest", date);
    dao.create(book);
    Assert.assertEquals(dao.findByPublishDate(date), Arrays.asList(book));
  }

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    Assert.assertEquals(dao.findByPublishDate(date), Arrays.asList(book));
  }


  @Test
  public void testCrud() {
    final Book b = new Book("Crud", new DateMidnight());
    dao.create(b);
    Assert.assertTrue(sessionFactory.getCurrentSession().contains(b));
    dao.update(b);
    Assert.assertTrue(sessionFactory.getCurrentSession().contains(b));
    Assert.assertSame(b, dao.get(b.getPrimaryKey()));

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    Assert.assertNull(dao.get(b.getPrimaryKey()));
  }


  @Test
  public void testSaveOrUpdate() {
    final Book b = new Book("SaveOrUpdate", new DateMidnight());
    dao.saveOrUpdate(b);
    Assert.assertTrue(sessionFactory.getCurrentSession().contains(b));
    Assert.assertSame(b, dao.get(b.getPrimaryKey()));
    dao.delete(b);
  }

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    dao.delete(b);
  }


  @Test
  public void testDao() {
    final Book book = new Book("SpringNamespaceTest", new DateMidnight());
    dao.create(book);
    final Set<Book> books = dao.findAll();
    Assert.assertEquals(books, Collections.singleton(book));
    final Book byTitle = dao.findByTitle("SpringNamespaceTest");
    Assert.assertEquals(byTitle, book);

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    Assert.assertEquals(byTitle, book);
  }


  @Test
  public void testLimitOffset() {
    final Book b1 = new Book("_aaa", new DateMidnight());
    dao.create(b1);
    final Book b2 = new Book("_bbb", new DateMidnight());
    dao.create(b2);
    final Book b3 = new Book("_ccc", new DateMidnight());
    dao.create(b3);
    final List<Book> books = dao.findLimitOffset(1, 1);
    Assert.assertEquals(books, Arrays.asList(b2));
  }

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    Assert.assertEquals(books, Arrays.asList(b2));
  }


  @Test
  public void testParameterList() {
    final Book b1 = new Book("param1", new DateMidnight());
    dao.create(b1);
    final Book b2 = new Book("param2", new DateMidnight());
    dao.create(b2);
    final Book b3 = new Book("param3", new DateMidnight());
    dao.create(b3);
    final List<Book> books1 = dao.findByIds(1, new long[] { b1.getPrimaryKey(), b2.getPrimaryKey() });
    Assert.assertEquals(books1, Arrays.asList(b1));
    final List<Book> books2 = dao.findByObjectIds(new Long[] { b1.getPrimaryKey(), b2.getPrimaryKey() });
    Assert.assertEquals(books2, Arrays.asList(b1, b2));

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    @Test
    public void testCurrentDate()
            throws Exception
    {
        // current date is the time at midnight in the session time zone
        DateMidnight dateMidnight = new DateMidnight(session.getStartTime(), DateTimeZone.UTC).withZoneRetainFields(DATE_TIME_ZONE);
        assertFunction("CURRENT_DATE", toDate(dateMidnight.getMillis()));
    }

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  }
  
  @Test
  public void timeZones() {
    LocalDate lt = new LocalDate(2000, 1, 1);
    DateMidnight dm = lt.toDateMidnight(DateTimeZone.UTC);
    
    Assert.assertEquals("2000-01-01T00:00:00.000Z", dm.toString());
  }

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