Examples of org.hibernate.Session.clear()

org.hibernate.Session.clear()
Completely clear the session. Evict all loaded instances and cancel all pending saves, updates and deletions. Do not close open iterators or instances of ScrollableResults.

    assertThat( loadedAccount.getHomeAddress().getType() ).isNotNull();
    assertThat( loadedAccount.getHomeAddress().getType().getName() ).isEqualTo( "primary" );


    session.delete( loadedAccount );
    transaction.commit();
    session.clear();


    transaction = session.beginTransaction();
    assertThat( session.get( Account.class, account.getLogin() ) ).isNull();
    transaction.commit();

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    item.setItemName( "Fairway Wood 19°" );
    item.setCount( 25 );
    session.persist( item );


    transaction.commit();
    session.clear();
    transaction = session.beginTransaction();


    // search and update
    StockItem loadedItem = (StockItem) session.createQuery( "from StockItem si" ).uniqueResult();
    assertNotNull( "Cannot load persisted object", loadedItem );

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    StockItem loadedItem = (StockItem) session.createQuery( "from StockItem si" ).uniqueResult();
    assertNotNull( "Cannot load persisted object", loadedItem );
    loadedItem.setCount( 24 );


    transaction.commit();
    session.clear();
    transaction = session.beginTransaction();


    loadedItem = (StockItem) session.get( StockItem.class, item.getId() );
    assertNotNull( "Cannot load persisted object", loadedItem );
    assertThat( loadedItem.getCount() ).isEqualTo( 24 );

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    AccountWithPhone wombatSoftware = new AccountWithPhone( "1", "Mobile account 1" );
    wombatSoftware.setPhoneNumber( null );


    session.persist( wombatSoftware );
    transaction.commit();
    session.clear();


    transaction = session.beginTransaction();
    AccountWithPhone loadedUser = (AccountWithPhone) session.get( AccountWithPhone.class, wombatSoftware.getId() );
    assertThat( loadedUser ).as( "Cannot load persisted object with nested embeddedables" ).isNotNull();
    // It is not null because of the list of elements

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    assertThat( loadedUser.getPhoneNumber().getMain() ).isNull();
    assertThat( loadedUser.getPhoneNumber().getAlternatives() ).isEmpty();


    session.delete( loadedUser );
    transaction.commit();
    session.clear();


    transaction = session.beginTransaction();
    assertThat( session.get( AccountWithPhone.class, wombatSoftware.getId() ) ).isNull();
    transaction.commit();
    session.close();

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    AccountWithPhone account = new AccountWithPhone( "2", "Mobile account 2" );
    account.setPhoneNumber( new PhoneNumber( "+1-222-555-0111", alternativePhones ) );


    session.persist( account );
    transaction.commit();
    session.clear();


    transaction = session.beginTransaction();
    AccountWithPhone loadedUser = (AccountWithPhone) session.get( AccountWithPhone.class, account.getId() );
    assertThat( loadedUser ).as( "Cannot load persisted object with nested embeddedables" ).isNotNull();
    assertThat( loadedUser.getPhoneNumber() ).isNotNull();

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    assertThat( loadedUser.getPhoneNumber().getMain() ).isEqualTo( account.getPhoneNumber().getMain() );
    assertThat( loadedUser.getPhoneNumber().getAlternatives() ).containsOnly( alternativePhones.toArray( new Object[alternativePhones.size()] ) );


    session.delete( loadedUser );
    transaction.commit();
    session.clear();


    transaction = session.beginTransaction();
    assertThat( session.get( AccountWithPhone.class, account.getId() ) ).isNull();
    transaction.commit();
    session.close();

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        )
    );


    session.persist( order );
    transaction.commit();
    session.clear();


    transaction = session.beginTransaction();
    Order loadedOrder = (Order) session.get( Order.class, "order-1" );
    assertThat( loadedOrder ).as( "Cannot load persisted object with nested embeddedables" ).isNotNull();
    assertThat( loadedOrder.getShippingAddress() ).isNotNull();

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    assertThat( loadedOrder.getShippingAddress().getPhone().getMain() ).isEqualTo( "+1-222-555-0111" );
    assertThat( loadedOrder.getShippingAddress().getPhone().getAlternatives() ).containsOnly( "+1-222-555-0222", "+1-202-555-0333" );


    session.delete( loadedOrder );
    transaction.commit();
    session.clear();


    transaction = session.beginTransaction();
    assertThat( session.get( Order.class, "order-1" ) ).isNull();
    transaction.commit();
    session.close();

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    }
    finally {
      try {
        if (entityManager !=  null) {
          Session session = getSession();
          if ( session != null && session.isOpen() ) session.clear();
        }
      }
      catch (Throwable t) {
        //we don't really care here since it's only for safety purpose
      }

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