Henning, The reason for this is quite simple: CLucene (as does Java Lucene) doesn't retreive all the possible results on the first lookup. It caches the first n results (usually 100), and whenever a result which hasn't been loaded is requested, it will go and fetch it. Without looking too deep into this, I assume while searching the Query object is needed.
As with other suggestions which have been raised here lately, I think it is best to first implement the basic smartpointers support, and only after that is done and tested, to start looking for more places that can be of andvantage to. I agree with you on this, but I'd like this intrusive change to be done in the correct order. Veit Jahns has offerred help on this subject, and I'm sure he could use another set of hands. I hope I will be able to join the effort shortly. So, for now let's keep with the current behvior, and just document this behavior. If you'll notice, all tests in our test suite care to dispose of the Query object only after the Hits object is disposed (or the application does not call for any further hits). Itamar. -----Original Message----- From: Henning Meyer [mailto:tutm...@gmail.com] Sent: Saturday, January 16, 2010 5:38 AM To: clucene-developers@lists.sourceforge.net Subject: [CLucene-dev] strange behaviour due to ownership problems Hi All again, while bug-hunting in my project I found a very strange behaviour regarding Hits::doc(int). If the corresponding Query is already destroyed, you'll get the first 100 results without any problems - just right till you get a SEGFAULT for the 101st result. Everything is fine if the Query-Object is kept. But this is not clearly stated in the docs. This should change! I'd propose taking a Copy or use of std::auto_ptr in this case, because I assume the Query is not only to be kept, but also to be unchanged. So ownership should go over to the Hits-Object. Maybe both methods should be offered. Internally both could initialize the same raw pointer. Henning ---------------------------------------------------------------------------- -- Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev _______________________________________________ CLucene-developers mailing list CLucene-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/clucene-developers ------------------------------------------------------------------------------ Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev _______________________________________________ CLucene-developers mailing list CLucene-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/clucene-developers
