Examples of org.springframework.dao.DataAccessException

org.springframework.dao.DataAccessException
mazon.com/exec/obidos/tg/detail/-/0764543857/">Expert One-On-One J2EE Design and Development. Please see Chapter 9 of this book for detailed discussion of the motivation for this package.
This exception hierarchy aims to let user code find and handle the kind of error encountered without knowing the details of the particular data access API in use (e.g. JDBC). Thus it is possible to react to an optimistic locking failure without knowing that JDBC is being used.
As this class is a runtime exception, there is no need for user code to catch it or subclasses if any error is to be considered fatal (the usual case). @author Rod Johnson

    }


    if (exception instanceof RuntimeException)
      return (RuntimeException) exception;


    return new DataAccessException("unexpected exception ", exception) {
    };
  }

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   * @return
   */
  public RuntimeException convertJbpmException(JbpmException ex) {
    // decode nested exceptions
    if (ex.getCause() instanceof HibernateException) {
      DataAccessException rootCause = SessionFactoryUtils.convertHibernateAccessException((HibernateException) ex.getCause());
      return rootCause;
    }


    // cannot convert the exception in any meaningful way
    return ex;

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    if (ex instanceof HibernateException) {
      return SessionFactoryUtils.convertHibernateAccessException((HibernateException) ex);
    }


    if (ex.getCause() instanceof HibernateException) {
      DataAccessException rootCause = SessionFactoryUtils.convertHibernateAccessException((HibernateException) ex.getCause());
      return new NestedDataAccessException(ex.getMessage(), rootCause);
    }


    // cannot convert the exception in any meaningful way
    return ex;

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            LOGGER.debug("Transaction synchronization committing SqlSession [" + this.holder.getSqlSession() + "]");
          }
          this.holder.getSqlSession().commit();
        } catch (PersistenceException p) {
          if (this.holder.getPersistenceExceptionTranslator() != null) {
            DataAccessException translated = this.holder
                .getPersistenceExceptionTranslator()
                .translateExceptionIfPossible(p);
            if (translated != null) {
              throw translated;
            }

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    public void tearDown() {
    }


    @Test(expected = DataAccessException.class)
    public void testInsertReservationWithNullArgument() {
        when(mockReservationDAO.insertReservation(null)).thenThrow(new DataAccessException("Null argument") {});
        
        reservationService.insertReservation(null);
    }

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    }
    
    @Test(expected = DataAccessException.class)
    public void testInsertReservationWithIncorrectReaderID() {   
        when(reservation1TO.getReaderTO().getId()).thenReturn(new Long(-5));
        when(mockReservationDAO.insertReservation(reservation1)).thenThrow(new DataAccessException("Incorrect reader") {});
        
        reservationService.insertReservation(reservation1TO);
    }

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    }
    
    @Test(expected = DataAccessException.class)
    public void testInsertReservationWithNullReaderID() { 
        when(reservation1TO.getReaderTO().getId()).thenReturn(null);
        when(mockReservationDAO.insertReservation(reservation1)).thenThrow(new DataAccessException("Null reader") {});
        
        reservationService.insertReservation(reservation1TO);
    }

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    }  
    
    @Test(expected = DataAccessException.class)
    public void testInsertReservationWithIncorrectBookID() { 
        when(reservation1TO.getBookTO().getId()).thenReturn(new Long(-5));
        when(mockReservationDAO.insertReservation(reservation1)).thenThrow(new DataAccessException("Incorrect book") {});
        
        reservationService.insertReservation(reservation1TO);
    }

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    }  
    
    @Test(expected = DataAccessException.class)
    public void testInsertReservationWithNullBookID() { 
        when(reservation1TO.getBookTO().getId()).thenReturn(new Long(-5));
        when(mockReservationDAO.insertReservation(reservation1)).thenThrow(new DataAccessException("Null book") {});
        
        reservationService.insertReservation(reservation1TO);
    }

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    } 
    
    @Test(expected = DataAccessException.class)
    public void testInsertReservationWithIncorrectReservationDate() {
        when(reservation1TO.getReservationDate()).thenReturn(null);
        when(mockReservationDAO.insertReservation(reservation1)).thenThrow(new DataAccessException("Incorrect reservation date") {});
        
        reservationService.insertReservation(reservation1TO);
    }

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