Trevor, You might use PhraseQuery and adjust the slop factor. However, what exactly is meant by "exact"?
For example, the StandardAnalyzer will tokenize the text "Bob is smiling" to two tokens, 'bob' and 'smiling' (note the lowercasing as well as the dropped 'is'). Clearly, "bob is smiling" is not exactly "Bob is smiling", so it all hinges on what is meant by "exact". -----Original Message----- From: Trevor Watson [mailto:[email protected]] Sent: Monday, August 17, 2009 4:55 PM To: [email protected] Subject: Document equals, not contains Last question for the day for you folks :) We've written the code for our webservice to do a "contains" search with Lucene.NET (easy thanks to the developers). Now the next part they added to it (development and planning in one go, /slaps project lead's hand) is to do a "Is Exactly" and "Is Not Exactly" searches. I know we could do this by doing a search and looking for anything with a score of _near_ 1. (even copied/pasted stuff gave me 0.99999994 scores, my guess is due to punctuation), however, we're using the Lucene.Net.QueryParsers.QueryParser and Lucene.Net.Search.Query to allow multiple clauses in the query. So I can't do "Is exactly "Bob is smiling"" then just loop through the returned values' scores. (instead we want to do "Field1 Is Exactly "Bob is smiling" AND Field2 Contains "happy" AND Field3 does not contain "Dancing ensued") Is it possible to add anything to the query to restrict the scores returned in Lucene.Net? For example, "Bob is happy"$0.9 would return anything with a 0.9 score or higher. Any advice would be greatly appreciated. Trevor Watson
