Return-Path: Delivered-To: apmail-lucene-java-user-archive@www.apache.org Received: (qmail 21433 invoked from network); 13 Nov 2005 18:56:29 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (209.237.227.199) by minotaur.apache.org with SMTP; 13 Nov 2005 18:56:29 -0000 Received: (qmail 14789 invoked by uid 500); 13 Nov 2005 18:56:24 -0000 Delivered-To: apmail-lucene-java-user-archive@lucene.apache.org Received: (qmail 14750 invoked by uid 500); 13 Nov 2005 18:56:24 -0000 Mailing-List: contact java-user-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: java-user@lucene.apache.org Delivered-To: mailing list java-user@lucene.apache.org Received: (qmail 14736 invoked by uid 99); 13 Nov 2005 18:56:24 -0000 Received: from asf.osuosl.org (HELO asf.osuosl.org) (140.211.166.49) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 13 Nov 2005 10:56:24 -0800 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests= X-Spam-Check-By: apache.org Received-SPF: pass (asf.osuosl.org: local policy) Received: from [69.55.225.129] (HELO ehatchersolutions.com) (69.55.225.129) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 13 Nov 2005 10:56:16 -0800 Received: by ehatchersolutions.com (Postfix, from userid 504) id 1EA5C13E2033; Sun, 13 Nov 2005 13:56:03 -0500 (EST) Received: from [192.168.1.104] (68-232-111-194.chvlva.adelphia.net [68.232.111.194]) by ehatchersolutions.com (Postfix) with ESMTP id A87D713E2008 for ; Sun, 13 Nov 2005 13:55:50 -0500 (EST) Mime-Version: 1.0 (Apple Message framework v734) In-Reply-To: <43778851.4030001@nus.edu.sg> References: <43778851.4030001@nus.edu.sg> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <3744D80C-368C-4697-BE85-1225946EA946@ehatchersolutions.com> Content-Transfer-Encoding: 7bit From: Erik Hatcher Subject: Re: Question on queryparser code from Lucene Date: Sun, 13 Nov 2005 13:54:43 -0500 To: java-user@lucene.apache.org X-Mailer: Apple Mail (2.734) X-Spam-Checker-Version: SpamAssassin 3.0.1 (2004-10-22) on javelina X-Spam-Level: X-Virus-Checked: Checked by ClamAV on apache.org X-Old-Spam-Status: No, score=-0.8 required=5.0 tests=AWL,BAYES_00, RCVD_IN_NJABL_DUL,RCVD_IN_SORBS_DUL autolearn=no version=3.0.1 X-Spam-Rating: minotaur.apache.org 1.6.2 0/1000/N On 13 Nov 2005, at 13:39, Eugene Ezekiel wrote: > I got this nagging problem that I can't figure out in the source > code of Lucene. > > In the file org/apache/lucene/queryParser/QueryParser.java, > there's a method called parse that returns a Query (see below): > > public Query parse(String query) throws ParseException { > ReInit(new FastCharStream(new StringReader(query))); > try { > return Query(field); > } > > I don't understand the return statement, > (i) how do we return without instantiation? > (ii) the Query class doesn't have a constructor that is Query(String)? :) Query(field) in this case is a method call. Erik --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org For additional commands, e-mail: java-user-help@lucene.apache.org