Package org.hibernate.engine

Examples of org.hibernate.engine.EntityKey


      // key value upon which to perform the breaking logic.  However,
      // it is also then called from getRowFromResultSet() which is certainly
      // not the most efficient.  But the call here is needed, and there
      // currently is no other way without refactoring of the doQuery()/getRowFromResultSet()
      // methods
      final EntityKey currentKey = getKeyFromResultSet(
          0,
          getEntityPersisters()[0],
          null,
          resultSet,
          session
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      if ( resultSet.isFirst() ) {
        // don't even bother trying to read any further
        return null;
      }

      EntityKey keyToRead = null;
      // This check is needed since processing leaves the cursor
      // after the last physical row for the current logical row;
      // thus if we are after the last physical row, this might be
      // caused by either:
      //      1) scrolling to the last logical row
      //      2) scrolling past the last logical row
      // In the latter scenario, the previous logical row
      // really is the last logical row.
      //
      // In all other cases, we should process back two
      // logical records (the current logic row, plus the
      // previous logical row).
      if ( resultSet.isAfterLast() && isLogicallyAfterLast ) {
        // position cursor to the last row
        resultSet.last();
        keyToRead = getKeyFromResultSet(
            0,
            getEntityPersisters()[0],
            null,
            resultSet,
            session
          );
      }
      else {
        // Since the result set cursor is always left at the first
        // physical row after the "last processed", we need to jump
        // back one position to get the key value we are interested
        // in skipping
        resultSet.previous();

        // sequentially read the result set in reverse until we recognize
        // a change in the key value.  At that point, we are pointed at
        // the last physical sequential row for the logical row in which
        // we are interested in processing
        boolean firstPass = true;
        final EntityKey lastKey = getKeyFromResultSet(
            0,
            getEntityPersisters()[0],
            null,
            resultSet,
            session
          );
        while ( resultSet.previous() ) {
          EntityKey checkKey = getKeyFromResultSet(
              0,
              getEntityPersisters()[0],
              null,
              resultSet,
              session
            );

          if ( firstPass ) {
            firstPass = false;
            keyToRead = checkKey;
          }

          if ( !lastKey.equals( checkKey ) ) {
            break;
          }
        }

      }

      // Read backwards until we read past the first physical sequential
      // row with the key we are interested in loading
      while ( resultSet.previous() ) {
        EntityKey checkKey = getKeyFromResultSet(
            0,
            getEntityPersisters()[0],
            null,
            resultSet,
            session
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    final Object optionalObject = queryParameters.getOptionalObject();
    final Serializable optionalId = queryParameters.getOptionalId();
    final String optionalEntityName = queryParameters.getOptionalEntityName();

    if ( optionalObject != null && optionalEntityName != null ) {
      return new EntityKey(
          optionalId,
          session.getEntityPersister( optionalEntityName, optionalObject ),
          session.getEntityMode()
        );
    }
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// from the new scrolling stuff.
//
// Would need to change the way the max-row stuff is handled (i.e. behind an interface) so
// that I could do the control breaking at the means to know when to stop
    final LockMode[] lockModeArray = getLockModes( queryParameters.getLockModes() );
    final EntityKey optionalObjectKey = getOptionalObjectKey( queryParameters, session );

    final boolean createSubselects = isSubselectLoadingEnabled();
    final List subselectResultKeys = createSubselects ? new ArrayList() : null;
    final List results = new ArrayList();
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      EntityType[] ownerAssociationTypes = getOwnerAssociationTypes();
      for ( int i = 0; i < keys.length; i++ ) {
       
        int owner = owners[i];
        if ( owner > -1 ) {
          EntityKey ownerKey = keys[owner];
          if ( keys[i] == null && ownerKey != null ) {
           
            final PersistenceContext persistenceContext = session.getPersistenceContext();
           
            /*final boolean isPrimaryKey;
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      if ( idIsResultId ) resultId = id; //use the id passed in
    }

    return resultId == null ?
        null :
        new EntityKey( resultId, persister, session.getEntityMode() );
  }
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    final Object[] rowResults = new Object[cols];

    for ( int i = 0; i < cols; i++ ) {

      Object object = null;
      EntityKey key = keys[i];

      if ( keys[i] == null ) {
        //do nothing
      }
      else {
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  private synchronized EntityKey generateDelayedEntityKey() {
    if ( !isDelayed ) {
      throw new AssertionFailure( "cannot request delayed entity-key for non-delayed post-insert-id generation" );
    }
    return new EntityKey( new DelayedPostInsertIdentifier(), getPersister(), getSession().getEntityMode() );
  }
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        log.trace(
            "refreshing transient " +
            MessageHelper.infoString( persister, id, source.getFactory() )
          );
      }
      EntityKey key = new EntityKey( id, persister, source.getEntityMode() );
      if ( source.getPersistenceContext().getEntry(key) != null ) {
        throw new PersistentObjectException(
            "attempted to refresh transient instance when persistent instance was already associated with the Session: " +
            MessageHelper.infoString(persister, id, source.getFactory() )
          );
      }
    }
    else {
      if ( log.isTraceEnabled() ) {
        log.trace(
            "refreshing " +
            MessageHelper.infoString( e.getPersister(), e.getId(), source.getFactory()  )
          );
      }
      if ( !e.isExistsInDatabase() ) {
        throw new HibernateException( "this instance does not yet exist as a row in the database" );
      }

      persister = e.getPersister();
      id = e.getId();
    }

    // cascade the refresh prior to refreshing this entity
    refreshedAlready.put(object, object);
    new Cascade(CascadingAction.REFRESH, Cascade.BEFORE_REFRESH, source)
        .cascade( persister, object, refreshedAlready );

    if ( e != null ) {
      EntityKey key = new EntityKey( id, persister, source.getEntityMode() );
      source.getPersistenceContext().removeEntity(key);
      if ( persister.hasCollections() ) new EvictVisitor( source ).process(object, persister);
    }

    if ( persister.hasCache() ) {
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    if ( entry == null ) {
      throw new AssertionFailure( "possible nonthreadsafe access to session" );
    }
    entry.postDelete();

    EntityKey key = new EntityKey( entry.getId(), entry.getPersister(), session.getEntityMode() );
    persistenceContext.removeEntity(key);
    persistenceContext.removeProxy(key);
   
    if ( persister.hasCache() ) persister.getCacheAccessStrategy().remove( ck );
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