code: public StringBuilder ensureCase(StringBuilder builder, String fieldName, boolean useToken)
      {
          if (useToken)
          {
              builder.append(TOKEN);
          }
          builder.append(Constants.ESCAPE_QUOTE);
          builder.append(fieldName);
          builder.append(Constants.ESCAPE_QUOTE);
          if (useToken)
          {
              builder.append(CLOSE_BRACKET);
          }
          return builder;
  
      }
docs: Ensures case for corresponding column name.
  
  @param builder
  column name builder.
  @param fieldName
  column name.
  @param useToken
  the use token
  @return builder object with appended column name.