code: public void addWhereClause(FreemarkerWhereClause freemarkerWhereClause) {
          String outputBody = freemarkerWhereClause.getOutputBody();
          if (StringUtils.isNotBlank(outputBody))
              freemarkerWhereClauses.add(outputBody);
      }
docs: Adds a where clause to the current context. Only performed on where clauses which are rendered.
  @param freemarkerWhereClause