On Friday 02 April 2004 08:12, Phil brunet wrote: > Hi all. > > I'm migrating a part of an application from Oracle intermedia to Lucene > (1.3) to perform full text searches.
Congratulations! :-) > I'd like to know if there is a way to perform "exact queries". By "exact > query", i mean beeing able to match ONLY document that are exactely equals > to the terms of the query. I believe plain old PhraseQuery does exactly that? You can build one yourself, or, using QueryParser, use something like +"this is an example" (making sure you use correct analyzer, depending on whether you want 'an' to be significant token in there). Note, too, that '+' prefix in there is not absolutely needed, if you don't have multiple parts to the query; even without that it'd only consider documents that have that exact phrase. -+ Tatu +- > > Exemple: > > document 1 = "this is an example" > document 2 = "this is an example of document" > document 3 = "this is an other example " > > Is it possible to match ONLY document 1 if i search for "this is an > exemple" ? > > Currently, i'm trying to override the DefaultSimilarity class in order to > be be able to deduce an exact match from the score. > > My query consists in a BooleanQuery composed by n TermQuery. > > I know i can develop by myself a "post filter" that could count compare the > number of tokens of the query and the number of tokens of the indexed > document. But i would like to know if there is a proper way to do this : > -> directly with Lucene (i.e. a Lucene query that would match only document > 1 in my example) > -> by redefining the Similarity and so by "interpreting" the scores > -> any idea .... > > Thanks. > > Philippe > > _________________________________________________________________ > Trouvez l'�me soeur sur MSN Rencontres http://g.msn.fr/FR1000/9551 > > > --------------------------------------------------------------------- > 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]
