I believe Lucene's QueryParser doesn't allow you to specify a leading wildcard. However, the WildcardQuery class does allow leading wildcard queries, such as "*technology". This is probably the easiest way to get around this.
You do have other options that can specify a wildcard search, such as using the RegexQuery or SpanRegexQuery classes, which can specify a leading wildcard query if you transform the wildcard notation to a regular expression notation. However, be aware that if your index is large, you can run into the TooManyClauses exception. There are many tricks you can do to get around this, search the forum for TooManyClauses to see what others have done. Hope this helps! Regards, Gary -----Original Message----- From: Supriya Kumar Shyamal [mailto:[EMAIL PROTECTED] Sent: Friday, September 15, 2006 07:54 AM To: java-user@lucene.apache.org Subject: Using wildcard at the start of teh token Hello All, I have a question .. how to use wildcard for searching at the start of the query string. For Ex. I want to search on title with query value "*technology", when I try to create a lucene query by using QueryParser it thorws the excpetion .. Lexical error at line 1, column 1. Encountered: "*" (42), after : "" But the other way around is fine like the query "technology*" is a valid query, just eager to know something like "Like" search in Oracle SQL query. Kind Regards, supriya -- Mit freundlichen Grüßen / Regards Supriya Kumar Shyamal Software Developer tel +49 (30) 443 50 99 -22 fax +49 (30) 443 50 99 -99 email [EMAIL PROTECTED] ___________________________ artnology GmbH Milastr. 4 10437 Berlin ___________________________ http://www.artnology.com __________________________________________________________________________ News / Aktuelle Projekte: * artnology gewinnt Ausschreibung des Bundesministeriums des Innern: Softwarelösung für die Verwaltung der Sammlung zeitgenössischer Kunstwerke zur kulturellen Repräsentation des Bundes. Projektreferenzen: * Globaler eShop und Corporate-Site für Springer: www.springeronline.com * E-Detailing-Portal für Novartis: www.interaktiv.novartis.de * Service-Center-Plattform für Biogen: www.ms-life.de * eCRM-System für Grünenthal: www.gruenenthal.com ___________________________________________________________________________ --------------------------------------------------------------------- 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]
