Examples of org.hibernate.Session.refresh()

org.hibernate.Session.refresh()
Re-read the state of the given instance from the underlying database. It is inadvisable to use this to implement long-running sessions that span many business tasks. This method is, however, useful in certain special circumstances. For example
- where a database trigger alters the object state upon insert or update
- after executing direct SQL (eg. a mass update) in the same session
- after inserting a Blob or Clob
@param object a persistent or detached instance @throws HibernateException

    assertTrue( Hibernate.isInitialized( dp ) );
    dp.setDescription( "changed" );
    assertEquals( "changed", dp.getDescription() );
    assertTrue( s.isReadOnly( dp ) );
    assertTrue( s.isReadOnly( ( ( HibernateProxy ) dp ).getHibernateLazyInitializer().getImplementation() ) );
    s.refresh( dp );
    assertEquals( "original", dp.getDescription() );
    dp.setDescription( "changed" );
    assertEquals( "changed", dp.getDescription() );
    assertTrue( s.isReadOnly( dp ) );
    assertTrue( s.isReadOnly( ( ( HibernateProxy ) dp ).getHibernateLazyInitializer().getImplementation() ) );

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    t = s.beginTransaction();
    dp = ( DataPoint ) s.get( DataPoint.class, dp.getId() );
    s.delete( dp );
    s.flush();
    try {
      s.refresh( dp );
      fail( "should have thrown UnresolvableObjectException" );
    }
    catch ( UnresolvableObjectException ex ) {
      // expected
    }

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    s = openSession();
    t = s.beginTransaction();
    assertTrue( dpProxyInit instanceof HibernateProxy );
    assertTrue( Hibernate.isInitialized( dpProxyInit ) );
    try {
      s.refresh( dpProxyInit );
      fail( "should have thrown UnresolvableObjectException" );
    }
    catch ( UnresolvableObjectException ex ) {
      // expected
    }

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    s = openSession();
    t = s.beginTransaction();
    assertTrue( dpProxy instanceof HibernateProxy );
    try {
      s.refresh( dpProxy );
      assertFalse( Hibernate.isInitialized( dpProxy ) );
      Hibernate.initialize( dpProxy );
      fail( "should have thrown UnresolvableObjectException" );
    }
    catch ( UnresolvableObjectException ex ) {

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    assertFalse( Hibernate.isInitialized( dp ) );
    assertFalse( s.isReadOnly( dp ) );
    s.setReadOnly( dp, true );
    assertTrue( s.isReadOnly( dp ) );
    s.evict( dp );
    s.refresh( dp );
    assertFalse( Hibernate.isInitialized( dp ) );
    assertFalse( s.isReadOnly( dp ) );
    dp.setDescription( "changed" );
    assertEquals( "changed", dp.getDescription() );
    assertTrue( Hibernate.isInitialized( dp ) );

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    dp.setDescription( "changed" );
    assertEquals( "changed", dp.getDescription() );
    assertTrue( Hibernate.isInitialized( dp ) );
    s.setReadOnly( dp, true );
    s.evict( dp );
    s.refresh( dp );
    assertEquals( "original", dp.getDescription() );
    assertFalse( s.isReadOnly( dp ) );
    t.commit();


    s.clear();

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      log.debug("Getting account " + id + " with refresh");
      tm.begin();
      try {
         Session session = sessionFactory.getCurrentSession();
         Account acct = (Account) session.get(acctClass, id);
         session.refresh(acct);
         acct = (Account) session.get(acctClass, id);
         tm.commit();
         return acct;
      } catch (Exception e) {
         log.error("rolling back", e);

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    checkReadOnly( s, dp, false );


    s.beginTransaction();
    checkReadOnly( s, dp, false );
    assertEquals( "changed", dp.getDescription() );
    s.refresh( dp );
    assertEquals( dpOrig.getDescription(), dp.getDescription() );
    checkReadOnly( s, dp, false );
    dp.setDescription( "changed again" );
    assertEquals( "changed again", dp.getDescription() );
    s.flush();

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    s.beginTransaction();
    node = ( VersionedNode ) s.get( VersionedNode.class, node.getId() );
    // the changed name is still in the session
    assertEquals( "node-name", node.getName() );
    s.refresh( node );
    // after refresh, the name reverts to the original value
    assertEquals( "node", node.getName() );
    node = ( VersionedNode ) s.get( VersionedNode.class, node.getId() );
    assertEquals( "node", node.getName() );
    s.getTransaction().commit();

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    assertEquals( "node", node.getName() );
    s.setReadOnly( node, true );
    node.setName( "diff-node-name" );
    s.flush();
    assertEquals( "diff-node-name", node.getName() );
    s.refresh( node );
    assertEquals( "node", node.getName() );
    s.setReadOnly( node, false );
    node.setName( "diff-node-name" );
    s.getTransaction().commit();
    s.close();

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