private Object encrypt(int index,Object xx){
  if (xx == null)   return null;
  if (index != -1 && p_info.isEncrypted(index))   return SecureEngine.encrypt(xx);
  return xx;
}

private Object encrypt ( int index , Object xx ) { if ( xx == null ) return null ; if ( index != - 1 && p_info . isEncrypted ( index ) ) return SecureEngine . encrypt ( xx ) ; return xx ; }
encrypt data . not : lob , special values / objects
