public static ims.ocrr.orderingresults.domain.objects.InvestigationQuestionAnswer
      extractInvestigationQuestionAnswer(
          ims.domain.ILightweightDomainFactory domainFactory,
          ims.ocrr.vo.InvestigationQuestionAnswerVo valueObject,
          HashMap domMap) {
    if (null == valueObject) {
      return null;
    }
    Integer id = valueObject.getID_InvestigationQuestionAnswer();
    ims.ocrr.orderingresults.domain.objects.InvestigationQuestionAnswer domainObject = null;
    if (null == id) {
      if (domMap.get(valueObject) != null) {
        return (ims.ocrr.orderingresults.domain.objects.InvestigationQuestionAnswer)
            domMap.get(valueObject);
      }
      // ims.ocrr.vo.InvestigationQuestionAnswerVo ID_InvestigationQuestionAnswer field is unknown
      domainObject = new ims.ocrr.orderingresults.domain.objects.InvestigationQuestionAnswer();
      domMap.put(valueObject, domainObject);
    } else {
      String key =
          (valueObject.getClass().getName()
              + "__"
              + valueObject.getID_InvestigationQuestionAnswer());
      if (domMap.get(key) != null) {
        return (ims.ocrr.orderingresults.domain.objects.InvestigationQuestionAnswer)
            domMap.get(key);
      }
      domainObject =
          (ims.ocrr.orderingresults.domain.objects.InvestigationQuestionAnswer)
              domainFactory.getDomainObject(
                  ims.ocrr.orderingresults.domain.objects.InvestigationQuestionAnswer.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_InvestigationQuestionAnswer());

    // SaveAsRefVO - treated as a refVo in extract methods
    ims.ocrr.configuration.domain.objects.Investigation value1 = null;
    if (null != valueObject.getInvestigation()) {
      if (valueObject.getInvestigation().getBoId() == null) {
        if (domMap.get(valueObject.getInvestigation()) != null) {
          value1 =
              (ims.ocrr.configuration.domain.objects.Investigation)
                  domMap.get(valueObject.getInvestigation());
        }
      } else {
        value1 =
            (ims.ocrr.configuration.domain.objects.Investigation)
                domainFactory.getDomainObject(
                    ims.ocrr.configuration.domain.objects.Investigation.class,
                    valueObject.getInvestigation().getBoId());
      }
    }
    domainObject.setInvestigation(value1);
    domainObject.setInvestigationQuestionAnswers(
        ims.core.vo.domain.GeneralQuestionAnswerVoAssembler.extractGeneralQuestionAnswerList(
            domainFactory,
            valueObject.getInvestigationQuestionAnswers(),
            domainObject.getInvestigationQuestionAnswers(),
            domMap));

    return domainObject;
  }