code: public void setMemcachedProtocol( final String memcachedProtocol ) {
          if ( !PROTOCOL_TEXT.equals( memcachedProtocol )
                  && !PROTOCOL_BINARY.equals( memcachedProtocol ) ) {
              _log.warn( "Illegal memcachedProtocol " + memcachedProtocol + ", using default (" + _memcachedProtocol + ")." );
              return;
          }
          _memcachedProtocol = memcachedProtocol;
      }
docs: Specifies the memcached protocol to use, either "text" (default) or "binary".
  
  @param memcachedProtocol one of "text" or "binary".