private StringBuilder makeDescription(Collection<Relation<?>> relations,DBIDRef id){
  StringBuilder buf=new StringBuilder();
  for (  Relation<?> rel : relations) {
    Object o=rel.get(id);
    if (o == null) {
      continue;
    }
    String s=o.toString();
    if (s != null) {
      if (buf.length() > 0) {
        buf.append("<br />");
      }
      buf.append(s);
    }
  }
  return buf;
}

private StringBuilder makeDescription ( Collection < Relation < ? > > relations , DBIDRef id ) { StringBuilder buf = new StringBuilder ( ) ; for ( Relation < ? > rel : relations ) { Object o = rel . get ( id ) ; if ( o == null ) { continue ; } String s = o . toString ( ) ; if ( s != null ) { if ( buf . length ( ) > 0 ) { buf . append ( "<br />" ) ; } buf . append ( s ) ; } } return buf ; }
make an html description .
