code: public void addLinkFromSelectPart(final String _linkFrom)
          throws CacheReloadException
      {
          this.fromSelect = new LinkFromSelect(_linkFrom, getQuery().isCacheEnabled() ? getQuery().getKey() : null);
      }
docs: Add the name of the type and attribute the link comes from,
  evaluated from an <code>linkTo[TYPENAME#ATTRIBUTENAME]</code>
  part of an select statement.
  @param _linkFrom   name of the attribute the link comes from
  @throws CacheReloadException on erro