code: private static String replaceOperators(String spel) {
          if (StringUtils.isBlank(spel)) {
              return spel;
          }
          return spel.replaceAll("==", " = ")
              .replaceAll("&&", " and ")
              .replaceAll("\\|\\|", " or ");
      }
docs: Replace SPEL ==, &&, || to SQL =, and, or .
  @param spel the spring expression
  @return sql expression