I agree. Thanks.
On 9/13/06, Ronnie Kolehmainen <[EMAIL PROTECTED]> wrote:
This might be related to filesystem, internal lucene buffering/caching, or practically anything that an implementor does not need to have knowledge of. The only thing that you, the implementor, *do* need to know is that you should *not* access a Hits object after the searcher is closed ;) /Ronnie Huinan wrote: > Thanks, Ronnie. But why it works in some cases (when there is a small > number > of documents inside the index) ? > > > On 9/13/06, Ronnie Kolehmainen <[EMAIL PROTECTED]> wrote: > >> >> Do not close the searcher until you are done with the Hits object. >> >> See the javadocs for Searchable.close() >> >> http://lucene.apache.org/java/docs/api/org/apache/lucene/search/Searchable.html#close() >> >> >> >> /Ronnie >> >> Huinan wrote: >> > Hi, >> > >> > I'm having a weird problem: >> > >> > I created an index using IndexWriter. Then I had a piece of code which >> > searches the index, then print out a particular field of the first >> document >> > of the hits.(See the following code) As simple as that. >> > >> > Hits hits = IndexSearchUtil.getHits(defaultIndexLocation, "A", >> "a"); >> > System.out.println(hits.length()); // This prints 1. >> > Document doc = hits.doc(0); // <------But this will throw >> an >> > IOException, and this is the problem. >> > System.out.println(doc.get("A")); >> > >> > The strange thing is that it DOES NOT ALWAYS throw an IOException. When >> I >> > have a small number (tens) of index entries, this works fine. But >> beyond >> a >> > certain threshold, It begins to throw up. :-( >> > >> > Does anyone have the same problem? or could suggest what might have >> gone >> > wrong? >> > >> > Thanks a lot! >> > >> > >> > Regards. >> > >> > Huinan >> > >> > >> > Appendix >> > (inside IndexSearchUtil class) >> > public static Hits getHits(String indexLocation, String fieldName, >> > String key) throws IOException { >> > return getHits(indexLocation, fieldName, key, true); >> > } >> > >> > public static Hits getHits(String indexLocation, String fieldName, >> > String key, boolean fieldTokenized) throws IOException { >> > IndexSearcher searcher = new IndexSearcher(indexLocation); >> > if (!fieldTokenized) >> > key = "\"" + key + "\""; >> > QueryParser parser = new QueryParser(fieldName, new >> > KeywordAnalyzer()); >> > Query query; >> > try { >> > query = parser.parse(key); >> > Hits hits = searcher.search(query); >> > searcher.close(); >> > return hits; >> > } catch (ParseException e) { >> > e.printStackTrace(); >> > return null; >> > } >> > } >> > >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > -- ________________________________________ Ronnie Kolehmainen Systems Developer Electronic Publishing Centre Uppsala University Library +46 (0)18 471 5847 mailto:[EMAIL PROTECTED] ________________________________________ --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
