public static List getAll() {
      final List codes = new ArrayList();
      for (final Object o : CODE_NAME_MAP.values()) {
        codes.add(o);
      }
      return codes;
    }
Returns the {@code ClassCode} represented by specified string.

@param operationName the operation name associated with a {@code ClassCode}
@return the {@code ClassCode} represented by specified string
geode-dunit/src/main/java/org/apache/geode/security/generator/AuthzCredentialGenerator.java