public static ims.choose_book.domain.objects.Conversation extractConversation(
      ims.domain.ILightweightDomainFactory domainFactory,
      ims.chooseandbook.vo.ConversationVo valueObject,
      HashMap domMap) {
    if (null == valueObject) {
      return null;
    }
    Integer id = valueObject.getID_Conversation();
    ims.choose_book.domain.objects.Conversation domainObject = null;
    if (null == id) {
      if (domMap.get(valueObject) != null) {
        return (ims.choose_book.domain.objects.Conversation) domMap.get(valueObject);
      }
      // ims.chooseandbook.vo.ConversationVo ID_Conversation field is unknown
      domainObject = new ims.choose_book.domain.objects.Conversation();
      domMap.put(valueObject, domainObject);
    } else {
      String key = (valueObject.getClass().getName() + "__" + valueObject.getID_Conversation());
      if (domMap.get(key) != null) {
        return (ims.choose_book.domain.objects.Conversation) domMap.get(key);
      }
      domainObject =
          (ims.choose_book.domain.objects.Conversation)
              domainFactory.getDomainObject(ims.choose_book.domain.objects.Conversation.class, id);

      // TODO: Not sure how this should be handled. Effectively it must be a staleobject exception,
      // but maybe should be handled as that further up.
      if (domainObject == null) return null;

      domMap.put(key, domainObject);
    }
    domainObject.setVersion(valueObject.getVersion_Conversation());

    domainObject.setCid(
        ims.chooseandbook.vo.domain.ConvIdVoAssembler.extractConvId(
            domainFactory, valueObject.getCid(), domMap));
    // SaveAsRefVO - treated as a refVo in extract methods
    ims.choose_book.domain.objects.SeqPoint value2 = null;
    if (null != valueObject.getCurrent()) {
      if (valueObject.getCurrent().getBoId() == null) {
        if (domMap.get(valueObject.getCurrent()) != null) {
          value2 = (ims.choose_book.domain.objects.SeqPoint) domMap.get(valueObject.getCurrent());
        }
      } else {
        value2 =
            (ims.choose_book.domain.objects.SeqPoint)
                domainFactory.getDomainObject(
                    ims.choose_book.domain.objects.SeqPoint.class,
                    valueObject.getCurrent().getBoId());
      }
    }
    domainObject.setCurrent(value2);
    domainObject.setPoints(
        ims.chooseandbook.vo.domain.ConvPointVoAssembler.extractConvPointList(
            domainFactory, valueObject.getPoints(), domainObject.getPoints(), domMap));
    domainObject.setMsgUids(
        ims.chooseandbook.vo.domain.ConvUidVoAssembler.extractConvUidList(
            domainFactory, valueObject.getMsgUids(), domainObject.getMsgUids(), domMap));

    return domainObject;
  }