You live and learn. :) Thanks! This really solves the problem.
-----Ursprüngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Gesendet: Freitag, 9. September 2005 11:12 An: java-user@lucene.apache.org Betreff: Re: AW: cancel search You could always create a subclass of RuntimeException and throw and catch this instead. "Kunemann Frank" <[EMAIL PROTECTED]> wrote on 09/09/2005 10:01:56: > Exceptions didn't work as you need to implement the HitCollector > class. Its method "collect" doesn't throw any exceptions and I don't > want to rewrite anything of Lucene, so I'm using "searcher.close()" instead: > > > public class TimedHitCollector extends HitCollector > { > private Searcher searcher; > private ArrayList ids = new ArrayList(); > private long startTime; > private long maxTime; > private long endTime; > private int maxDocs = 10; > > public TimedHitCollector(Searcher searcher, ArrayList list, long maxTime) > { > startTime = System.currentTimeMillis(); > this.searcher = searcher; > this.ids = list; > this.maxTime = maxTime; > } > > public void collect(int id, float score) > { > long diff = System.currentTimeMillis() - startTime; > > if((diff > maxTime) || (ids.size() >= maxDocs)) { > > endTime = System.currentTimeMillis(); > System.out.println("canceling search..."); > > try { > searcher.close(); > } > catch(IOException e) { > e.printStackTrace(); > } > } > else { > ids.add(new Integer(id)); > endTime = System.currentTimeMillis(); > } > } > } > > Be sure to catch IOException when calling searcher.search from your > application, otherwise your program will exit sometimes. In this > case no results will be returned. > That's why I can't use it to cancel the search after a given time or > amount of documents found. But it's good enough for a cancel-button. > > Hope this will help everyone having the same problem. > > > Frank > > -----Ursprüngliche Nachricht----- > Von: Yonik Seeley [mailto:[EMAIL PROTECTED] > Gesendet: Donnerstag, 8. September 2005 15:09 > An: java-user@lucene.apache.org > Betreff: Re: cancel search > > You could create your own HitCollector that checked a flag on each hit, and > throw an exception if it was set. > In a separate thread, you could set the flag to cancel the search. > > -Yonik > Now hiring -- http://tinyurl.com/7m67g > > On 9/8/05, Kunemann Frank <[EMAIL PROTECTED]> wrote: > > > > > > The problem is that when searching there is no real save point to stop > > the thread. The only line that takes time is this one: > > > > Hits hits = searcher.search(query); > > > > > > Frank > > > > >I've had such a long lasting search too. I sounds good to start the > > >search in another thread. I've done this for the indexing procedure. > > >This is started in another thread and the gui will be informed when > > >indexing is performed. If the user will stop it he has to click on a > > >button stop and then an event is send to the indexerthread. The > > >indexerthread stops if he reaches a safe point. Surely this is for > > >indexing but I think this would work for searching also. > > >stefan > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
