How to use

getSystemElement

method

in

org.hl7.fhir.dstu3.model.Quantity

private void addQuantity(ResourceTable theEntity, HashSet<ResourceIndexedSearchParamQuantity> retVal, String resourceName, Quantity nextValue) {
  if (!nextValue.getValueElement().isEmpty()) {
    BigDecimal nextValueValue = nextValue.getValueElement().getValue();
    String nextValueString = nextValue.getSystemElement().getValueAsString();
    String nextValueCode = nextValue.getCode();
    ResourceIndexedSearchParamQuantity nextEntity = new ResourceIndexedSearchParamQuantity(resourceName, nextValueValue, nextValueString, nextValueCode);
    nextEntity.setResource(theEntity);
    retVal.add(nextEntity);
  }
}

private void checkQuantity(List<ValidationMessage> errors, String path, Element focus, Quantity fixed) {
 checkFixedValue(errors, path + ".value", focus.getNamedChild("value"), fixed.getValueElement(), "value", focus);
 checkFixedValue(errors, path + ".comparator", focus.getNamedChild("comparator"), fixed.getComparatorElement(), "comparator", focus);
 checkFixedValue(errors, path + ".units", focus.getNamedChild("unit"), fixed.getUnitElement(), "units", focus);
 checkFixedValue(errors, path + ".system", focus.getNamedChild("system"), fixed.getSystemElement(), "system", focus);
 checkFixedValue(errors, path + ".code", focus.getNamedChild("code"), fixed.getCodeElement(), "code", focus);
}

@Override
public Base makeProperty(int hash, String name) throws FHIRException {
 switch (hash) {
 case 111972721:  return getValueElement();
 case -844673834:  return getComparatorElement();
 case 3594628:  return getUnitElement();
 case -887328209:  return getSystemElement();
 case 3059181:  return getCodeElement();
 default: return super.makeProperty(hash, name);
 }
}

public SimpleQuantity castToSimpleQuantity(Base b) throws FHIRException {
  if (b instanceof SimpleQuantity)
    return (SimpleQuantity) b;
  else if (b instanceof Quantity) {
   Quantity q = (Quantity) b;
   SimpleQuantity sq = new SimpleQuantity();
 sq.setValueElement(q.getValueElement());
 sq.setComparatorElement(q.getComparatorElement());
 sq.setUnitElement(q.getUnitElement());
 sq.setSystemElement(q.getSystemElement());
 sq.setCodeElement(q.getCodeElement());
 return sq;
  } else
    throw new FHIRException("Unable to convert a "+b.getClass().getName()+" to an SimpleQuantity");
}
 

private void checkQuantity(List<ValidationMessage> errors, String path, Element focus, Quantity fixed) {
 checkFixedValue(errors, path + ".value", focus.getNamedChild("value"), fixed.getValueElement(), "value", focus);
 checkFixedValue(errors, path + ".comparator", focus.getNamedChild("comparator"), fixed.getComparatorElement(), "comparator", focus);
 checkFixedValue(errors, path + ".units", focus.getNamedChild("unit"), fixed.getUnitElement(), "units", focus);
 checkFixedValue(errors, path + ".system", focus.getNamedChild("system"), fixed.getSystemElement(), "system", focus);
 checkFixedValue(errors, path + ".code", focus.getNamedChild("code"), fixed.getCodeElement(), "code", focus);
}