@Override
    public boolean setFlags(final @PersistentFS.Attributes int flags) {
      final int fieldOffsetInPage = recordOffsetInPage + FLAGS_OFFSET;
      if (pageBuffer.getInt(fieldOffsetInPage) != flags) {
        pageBuffer.putInt(fieldOffsetInPage, flags);
        return true;
      }
      return false;
    }
@Override
    public boolean setFlags(final @PersistentFS.Attributes int flags)