code: public Integer getPosition(String parameterName) {
          Integer position = null;
  
          for (int i = 0; i < this.sqlParameterNames.size(); i++) {
              if (this.sqlParameterNames.get(i).equals(parameterName) == true) {
                  position = i;
                  break;
              }
          }
  
          return position;
      }
docs: Returns position(order) of specified parameter name
  
  @param parameterName parameter name which would be searched
  @return position of parameter, null if it wasn't found in list of parameter names