code: private List<Object> onParameterValue(String paramString)
      {
          List<Object> value = kunderaQuery.getClauseValue(paramString);
          if (value == null)
          {
              throw new IllegalStateException("parameter has not been bound" + paramString);
          }
          return value;
      }
docs: Returns parameter value.
  
  @param paramString
  parameter as string.
  
  @return value of parameter.